fb-trigger
Feel Confident With Numbers, Not ConfusedFeel Confident With Numbers, Not Confused
Take the quiz to get your personalized plan

Feel Confident With Numbers, Not Confused

The number sense coaching app for all learners
The number sense coaching app for all learners
  • Build real understanding, not just memorized tricks
  • Learn mental math, estimation, and flexible thinking
  • See how math concepts connect and make sense
Tim Ricchuiti
Created byTim Ricchuiti
Educator and communicator dedicated to helping people understand, enjoy, and love mathematics.
Background
Hero image

Your coach

You’re quick with basic calculations, but sometimes miss opportunities to break numbers into friendlier parts. Try decomposing numbers in today’s practice to spot easier paths to the answer.

Today's Lesson

6 min • Decomposing Numbers

Continue lesson
Take the quiz to get your personalized plan
Achieve your goals

Make numbers make sense.

With this app as your guide, transform the way you understand and use mathematics in everyday life. Build fluency one habit at a time through daily lessons, guided practice, and real-world challenges.

Feature image

Nice job!

You crushed your goal of mastering 20 mental math strategies this month.

lightbulb

Think like a mathematician

Develop the habits and insights experts use to see connections, recognize patterns, and reason confidently about numbers in any situation.

calculate

Master mental math with ease

Learn to estimate, decompose, and recombine quantities so you can solve problems quickly—without relying on slow, mechanical procedures.

auto_awesome

Overcome math anxiety for good

Build real confidence through clear explanations and supportive practice, so you can finally feel empowered and at home with mathematics.

The only app you need

A personalized math teacher. In your pocket.

This app guides you through the world of number sense with clear explanations and guided practice. Each week, you'll complete interactive exercises, explore connections between operations, and tackle challenging mathematics relevant to real life. The app adapts to your progress, offers instant feedback, and personalizes each lesson to your needs, interests, and goals. It's everything you need to think like a math person, all in one place.

Feel Confident With Numbers, Not ConfusedFeel Confident With Numbers, Not Confused
Take the quiz to get your personalized plan

Feel Confident With Numbers, Not Confused

The number sense coaching app for all learners
The number sense coaching app for all learners
  • Build real understanding, not just memorized tricks
  • Learn mental math, estimation, and flexible thinking
  • See how math concepts connect and make sense
Tim Ricchuiti
Created byTim Ricchuiti
Educator and communicator dedicated to helping people understand, enjoy, and love mathematics.
Background
Hero image

Your coach

You’re quick with basic calculations, but sometimes miss opportunities to break numbers into friendlier parts. Try decomposing numbers in today’s practice to spot easier paths to the answer.

Today's Lesson

6 min • Decomposing Numbers

Continue lesson
Take the quiz to get your personalized plan
Achieve your goals

Make numbers make sense.

With this app as your guide, transform the way you understand and use mathematics in everyday life. Build fluency one habit at a time through daily lessons, guided practice, and real-world challenges.

Feature image

Nice job!

You crushed your goal of mastering 20 mental math strategies this month.

lightbulb

Think like a mathematician

Develop the habits and insights experts use to see connections, recognize patterns, and reason confidently about numbers in any situation.

calculate

Master mental math with ease

Learn to estimate, decompose, and recombine quantities so you can solve problems quickly—without relying on slow, mechanical procedures.

auto_awesome

Overcome math anxiety for good

Build real confidence through clear explanations and supportive practice, so you can finally feel empowered and at home with mathematics.

The only app you need

A personalized math teacher. In your pocket.

This app guides you through the world of number sense with clear explanations and guided practice. Each week, you'll complete interactive exercises, explore connections between operations, and tackle challenging mathematics relevant to real life. The app adapts to your progress, offers instant feedback, and personalizes each lesson to your needs, interests, and goals. It's everything you need to think like a math person, all in one place.

Feature showcase

Number Warm-Up

Estimation Challenge

Today's Lesson

6 min • Decomposing Numbers

Start lesson

Reflection Journal

Including everything you need to succeed:

calculate

Guided number sense practice to build confidence and fluency

keyboard_arrow_down

Strengthen your intuition with daily exercises that develop flexible, expert-like thinking about numbers.

lightbulb

Clear explanations that reveal the why behind the concepts

keyboard_arrow_down

Understand how operations connect and why strategies work, not just how to follow steps.

sync_alt

Connections between operations for deeper understanding

keyboard_arrow_down

See how addition, subtraction, multiplication, and division relate and reinforce each other.

scatter_plot

Multiple representations to visualize and reason flexibly

keyboard_arrow_down

Move fluidly between visual models, mental math, and symbolic notation to strengthen understanding.

psychology

Estimation and mental calculation for real-world problem solving

keyboard_arrow_down

Develop habits of estimation and mental math to solve problems efficiently and confidently.

auto_fix_high

Decomposition and recombination strategies for complex calculations

keyboard_arrow_down

Learn to break numbers apart and recombine them, making tough problems easier and more intuitive.

insights

Progress tracking to celebrate growth and mastery

keyboard_arrow_down

Visualize your improvement, set goals, and see your number sense skills grow over time.

quiz

Interactive quizzes to reinforce learning and boost retention

keyboard_arrow_down

Test your understanding with engaging quizzes that adapt to your strengths and areas for growth.

support_agent

Personalized coaching for every learner, every step

keyboard_arrow_down

Get instant feedback and tailored guidance, so you always know how to improve and what to try next.

Created by Tim Ricchuiti

“Math makes sense when you see how the ideas fit together. That's what this app teaches.”

Tim Ricchuiti

Tim Ricchuiti

Educator and communicator dedicated to helping people understand, enjoy, and love mathematics.

For as long as I can remember, I’ve been fascinated by the patterns and logic that make mathematics such a powerful tool for understanding the world. But over the years, I’ve seen far too many students and adults walk away from math feeling defeated. These are individuals who are sharp, curious, and absolutely convinced they are “not math people.”

They're wrong. But it's not their fault.

Many of us were taught math as a pile of procedures. Memorize the steps, plug in the numbers, get the right answer. But what about when the steps don't make sense? What happens when you don't get the right answer? I have spent years developing resources and strategies that help learners see the past the answer key, connect ideas, and build real confidence with numbers.

This app is the result of that work. A daily practice that builds number sense the way it should have been built the first time: one idea at a time, with the reasoning shown, in small enough steps that the intuition can catch up with the procedure. The goal is to move beyond memorization and build habits of thought that make math feel intuitive and usable.

Whether you are a student strengthening your foundation or an adult rebuilding confidence, this app is here to help you understand math in a deeper and more practical way.

Follow Tim's proven process & master number sense

Develop flexible mental math strategies
Understand how operations connect and interact
Break down and recombine numbers with ease
Estimate answers quickly and accurately
Recognize patterns and structure in problems
Move fluidly between different representations
Build confidence in tackling unfamiliar math tasks
Replace rote memorization with real understanding
Apply number sense to everyday situations
Join a supportive community of math learners
AI-POWERED COACHING

Every single day in the app is 100% personalized to you.

Built with powerful AI, this app is unlike anything you've ever used before. Your entire experience will be designed just for you.

analytics

Number Sense Daily: Flexible Thinking with Numbers

Personalized Practice • 12 min

Strengthen your number sense with a daily sequence of guided activities. Each session adapts to your current skills, helping you see patterns, estimate quickly, and connect operations for deeper understanding.

What to do
timer
Quick Estimation Warm-Up
2 min
chevron_right
assignment
Decompose & Recombine Challenge
4 min
chevron_right
swap_horiz
Operation Connections
4 min
chevron_right
edit
Mental Math Reflection
3 min
chevron_right
How it works

Build real number sense in 4 simple steps

It only takes a few minutes to get started

Onboarding Quiz

What’s your main goal with numbers?

Get faster at mental math
Feel more confident with numbers
Understand how math concepts connect
Make everyday calculations easier
1

Complete the onboarding quiz

Share your math background and goals so the app can tailor your experience and focus on your unique needs.

Your Plan

Week 1

Building Number Sense

Flexible Counting Strategies
Breaking Numbers Apart
Making Friendly Numbers
Estimation Basics
Week 2Upcoming

Connecting Operations

2

Get your personalized plan

Receive a step-by-step plan designed to strengthen your number sense and build lasting mathematical confidence.

Today, May 14

6
V

Number Warm-Up

Activity • 3 min

Estimation Challenge

Activity • 4 min

Decomposing Numbers

Lesson • 6 min

Reflection Journal

Journal • 3 min

3

Follow daily tasks to stay on track

Practice with guided exercises, clear explanations, and real-world examples that help you connect ideas and think flexibly.

Your Progress

Mental Math Strategies Mastered

20 total

+5 in the last week

FebruaryMay

Practice Minutes

120 min

+30 in the last week

FebruaryMay
4

Track progress & see real results

Watch your skills grow as you gain confidence, recognize patterns, and develop a deeper understanding of how numbers work.

It only takes 2 minutes to get started

starstarstarstarstar

See how Tim Ricchuiti has changed lives around the world

Join millions of people achieving their goals on Studio

Quote
I came across Tim's videos after hitting a learning block on another learning source, and I am so glad I did! Your strategies are helping things click and giving me more confidence. Your tips are helping me keep my work more organized. And I find you funny to boot, which is great when dealing with seemingly daughting tasks. Thank you for making these videos.
A
starstarstarstarstar
Alex Lemon
VERIFIED CUSTOMER
Quote
Mr. Ricchuiti is a great math teacher. He has the unique ability to communicate complex concepts simply and understandably. I had him as a teacher and a tutor for standardized tests prep, and the results have been terrific. I Iooked forward to the sessions because Mr. Ricchuiti is patient, understanding, and he makes learning fun. He is truly extraordinary. If I ever need him I would call him through college and the years beyond.
P
starstarstarstarstar
Preston Laird
VERIFIED CUSTOMER
Quote
Mr. Ricchuiti explains math in a way that makes it not only interesting to learn but also makes it simple. Concepts that I did not think I could grasp in class became second nature with Mr. Ricchuiti’s help, and over the years helped with my SAT score, AP scores, and prepared me for college.
S
starstarstarstarstar
Sydney Chandler
VERIFIED CUSTOMER
Quote
I've struggled deeply with math my entire life - Mr. Ricchuiti's lessons made the subject understable and engaging, and I improved my math sub-score drastically. His lessons led to a 110 point improvement in my SAT score (1380-1490).
H
starstarstarstarstar
Humberto Gallego
VERIFIED CUSTOMER
Quote
Tim Ricchuiti is a wizard with numbers and logic. He breaks concepts down into understandable pieces for kids. Because of his past work with the testing agencies, he knows what to spend the most time on to prepare for the tests. He gets kids and is a fantastic teacher/tutor!
T
starstarstarstarstar
Tracy Stringfield
Parent
Quote
Tim Ricchuiti is an amazing teacher! He has an ability to explain complicated/difficult math concepts in a way that made math survivable for both of my children.
K
starstarstarstarstar
Kelsie Wagner
Parent
Quote
Tim is a genius who, through humor, kindness, and unbelievable teaching skills caused both of our middle school-aged children to LOVE math. After his classes, both felt competent and confident in their skills to approach any problem. Thank you, Tim!
S
starstarstarstarstar
Stephanie Baker
ParENT
Quote
Tim Ricchuiti has been a colleague of mine for the past ten years. As a master teacher, Mr. Ricchuiti utilizes creative educational tools to successfully convey complex mathematical concepts. He experiences an outstanding rapport with his students who enjoy his intelligent and relaxed teaching style.
E
starstarstarstarstar
Eileen Ohanian
Educator
Quote
I have two 9th grade boys who have had the pleasure of learning under Mr. Ricchuiti. They have participated in his ISEE Prep classes as well as his online tutorials. Mr. Ricchuiti has an amazing way of making difficult material engaging and accessible - even for 14 year old boys! As I mom, I find myself watching over their shoulders wishing I had a teacher like him when I was in school. We are extremely thankful for Mr. Ricchuiti's instruction.
E
starstarstarstarstar
Ellen Porter
Parent
FAQ

Your questions, answered

Who is this app for?
expand_more
What will I learn in this app?
expand_more
How much time do I need to dedicate to this app?
expand_more
Is this app suitable for beginners?
expand_more
How personalized is the experience?
expand_more
What kind of support is available?
expand_more
Today's the day

Start building real confidence with numbers and unlock the power of mathematics

You’re only minutes away from getting your personalized number sense coaching plan. Start achieving your math confidence goals today alongside Tim Ricchuiti.

targetNumberSense Coach
6
V

Good morning!

Loading...

list_alt
No activities available for today.
Today
Plan
Progress
Coach
Quick Activity Update
more_horiz
What should I focus on today?
09:55 AM
Today, we'll focus on estimation, decomposing numbers, and connecting operations. These skills help you move beyond memorization and develop true number sense, making math more intuitive and less intimidating.
09:55 AM
I'm short on time and only have about 5 minutes today. Can you give me a quick version of my practice?
09:56 AM
Absolutely! I'll streamline today's session to focus on a quick estimation warm-up and one decompose & recombine challenge. This way, you'll still strengthen your number sense, even on a busy day.
09:56 AM
targetNumberSense Coach
6
V

Good morning!

Loading...

list_alt
No activities available for today.
You're on a roll!
6 day streak
Today is May 14
check
check
check
check
check
check
S
M
T
W
T
F
S
infoWhat counts towards your streak?
checkReview a progress update
checkFinish a lesson
checkComplete an activity or session
checkTrack a measurement
Today
Plan
Progress
Coach

Your Plan

calendar_month
No plan data available for this app.
Today
Plan
Progress
Coach

Your Progress

monitoring
No measurements configured for this app yet.
Today
Plan
Progress
Coach

Including everything you need to succeed:

calculate

Guided number sense practice to build confidence and fluency

keyboard_arrow_down

Strengthen your intuition with daily exercises that develop flexible, expert-like thinking about numbers.

lightbulb

Clear explanations that reveal the why behind the concepts

keyboard_arrow_down

Understand how operations connect and why strategies work, not just how to follow steps.

sync_alt

Connections between operations for deeper understanding

keyboard_arrow_down

See how addition, subtraction, multiplication, and division relate and reinforce each other.

scatter_plot

Multiple representations to visualize and reason flexibly

keyboard_arrow_down

Move fluidly between visual models, mental math, and symbolic notation to strengthen understanding.

psychology

Estimation and mental calculation for real-world problem solving

keyboard_arrow_down

Develop habits of estimation and mental math to solve problems efficiently and confidently.

auto_fix_high

Decomposition and recombination strategies for complex calculations

keyboard_arrow_down

Learn to break numbers apart and recombine them, making tough problems easier and more intuitive.

insights

Progress tracking to celebrate growth and mastery

keyboard_arrow_down

Visualize your improvement, set goals, and see your number sense skills grow over time.

quiz

Interactive quizzes to reinforce learning and boost retention

keyboard_arrow_down

Test your understanding with engaging quizzes that adapt to your strengths and areas for growth.

support_agent

Personalized coaching for every learner, every step

keyboard_arrow_down

Get instant feedback and tailored guidance, so you always know how to improve and what to try next.

Created by Tim Ricchuiti

“Math makes sense when you see how the ideas fit together. That's what this app teaches.”

Tim Ricchuiti

Tim Ricchuiti

Educator and communicator dedicated to helping people understand, enjoy, and love mathematics.

For as long as I can remember, I’ve been fascinated by the patterns and logic that make mathematics such a powerful tool for understanding the world. But over the years, I’ve seen far too many students and adults walk away from math feeling defeated. These are individuals who are sharp, curious, and absolutely convinced they are “not math people.”

They're wrong. But it's not their fault.

Many of us were taught math as a pile of procedures. Memorize the steps, plug in the numbers, get the right answer. But what about when the steps don't make sense? What happens when you don't get the right answer? I have spent years developing resources and strategies that help learners see the past the answer key, connect ideas, and build real confidence with numbers.

This app is the result of that work. A daily practice that builds number sense the way it should have been built the first time: one idea at a time, with the reasoning shown, in small enough steps that the intuition can catch up with the procedure. The goal is to move beyond memorization and build habits of thought that make math feel intuitive and usable.

Whether you are a student strengthening your foundation or an adult rebuilding confidence, this app is here to help you understand math in a deeper and more practical way.

Follow Tim's proven process & master number sense

Develop flexible mental math strategies
Understand how operations connect and interact
Break down and recombine numbers with ease
Estimate answers quickly and accurately
Recognize patterns and structure in problems
Move fluidly between different representations
Build confidence in tackling unfamiliar math tasks
Replace rote memorization with real understanding
Apply number sense to everyday situations
Join a supportive community of math learners
AI-POWERED COACHING

Every single day in the app is 100% personalized to you.

Built with powerful AI, this app is unlike anything you've ever used before. Your entire experience will be designed just for you.

analytics

Number Sense Daily: Flexible Thinking with Numbers

Personalized Practice • 12 min

Strengthen your number sense with a daily sequence of guided activities. Each session adapts to your current skills, helping you see patterns, estimate quickly, and connect operations for deeper understanding.

What to do
timer
Quick Estimation Warm-Up
2 min
chevron_right
assignment
Decompose & Recombine Challenge
4 min
chevron_right
swap_horiz
Operation Connections
4 min
chevron_right
edit
Mental Math Reflection
3 min
chevron_right
How it works

Build real number sense in 4 simple steps

It only takes a few minutes to get started

Onboarding Quiz

What’s your main goal with numbers?

Get faster at mental math
Feel more confident with numbers
Understand how math concepts connect
Make everyday calculations easier
1

Complete the onboarding quiz

Share your math background and goals so the app can tailor your experience and focus on your unique needs.

Your Plan

Week 1

Building Number Sense

Flexible Counting Strategies
Breaking Numbers Apart
Making Friendly Numbers
Estimation Basics
Week 2Upcoming

Connecting Operations

2

Get your personalized plan

Receive a step-by-step plan designed to strengthen your number sense and build lasting mathematical confidence.

Today, May 14

6
V

Number Warm-Up

Activity • 3 min

Estimation Challenge

Activity • 4 min

Decomposing Numbers

Lesson • 6 min

Reflection Journal

Journal • 3 min

3

Follow daily tasks to stay on track

Practice with guided exercises, clear explanations, and real-world examples that help you connect ideas and think flexibly.

Your Progress

Mental Math Strategies Mastered

20 total

+5 in the last week

FebruaryMay

Practice Minutes

120 min

+30 in the last week

FebruaryMay
4

Track progress & see real results

Watch your skills grow as you gain confidence, recognize patterns, and develop a deeper understanding of how numbers work.

It only takes 2 minutes to get started

starstarstarstarstar

See how Tim Ricchuiti has changed lives around the world

Join millions of people achieving their goals on Studio

Quote
I came across Tim's videos after hitting a learning block on another learning source, and I am so glad I did! Your strategies are helping things click and giving me more confidence. Your tips are helping me keep my work more organized. And I find you funny to boot, which is great when dealing with seemingly daughting tasks. Thank you for making these videos.
A
starstarstarstarstar
Alex Lemon
VERIFIED CUSTOMER
Quote
Mr. Ricchuiti is a great math teacher. He has the unique ability to communicate complex concepts simply and understandably. I had him as a teacher and a tutor for standardized tests prep, and the results have been terrific. I Iooked forward to the sessions because Mr. Ricchuiti is patient, understanding, and he makes learning fun. He is truly extraordinary. If I ever need him I would call him through college and the years beyond.
P
starstarstarstarstar
Preston Laird
VERIFIED CUSTOMER
Quote
Mr. Ricchuiti explains math in a way that makes it not only interesting to learn but also makes it simple. Concepts that I did not think I could grasp in class became second nature with Mr. Ricchuiti’s help, and over the years helped with my SAT score, AP scores, and prepared me for college.
S
starstarstarstarstar
Sydney Chandler
VERIFIED CUSTOMER
Quote
I've struggled deeply with math my entire life - Mr. Ricchuiti's lessons made the subject understable and engaging, and I improved my math sub-score drastically. His lessons led to a 110 point improvement in my SAT score (1380-1490).
H
starstarstarstarstar
Humberto Gallego
VERIFIED CUSTOMER
Quote
Tim Ricchuiti is a wizard with numbers and logic. He breaks concepts down into understandable pieces for kids. Because of his past work with the testing agencies, he knows what to spend the most time on to prepare for the tests. He gets kids and is a fantastic teacher/tutor!
T
starstarstarstarstar
Tracy Stringfield
Parent
Quote
Tim Ricchuiti is an amazing teacher! He has an ability to explain complicated/difficult math concepts in a way that made math survivable for both of my children.
K
starstarstarstarstar
Kelsie Wagner
Parent
Quote
Tim is a genius who, through humor, kindness, and unbelievable teaching skills caused both of our middle school-aged children to LOVE math. After his classes, both felt competent and confident in their skills to approach any problem. Thank you, Tim!
S
starstarstarstarstar
Stephanie Baker
ParENT
Quote
Tim Ricchuiti has been a colleague of mine for the past ten years. As a master teacher, Mr. Ricchuiti utilizes creative educational tools to successfully convey complex mathematical concepts. He experiences an outstanding rapport with his students who enjoy his intelligent and relaxed teaching style.
E
starstarstarstarstar
Eileen Ohanian
Educator
Quote
I have two 9th grade boys who have had the pleasure of learning under Mr. Ricchuiti. They have participated in his ISEE Prep classes as well as his online tutorials. Mr. Ricchuiti has an amazing way of making difficult material engaging and accessible - even for 14 year old boys! As I mom, I find myself watching over their shoulders wishing I had a teacher like him when I was in school. We are extremely thankful for Mr. Ricchuiti's instruction.
E
starstarstarstarstar
Ellen Porter
Parent
FAQ

Your questions, answered

Who is this app for?
expand_more
What will I learn in this app?
expand_more
How much time do I need to dedicate to this app?
expand_more
Is this app suitable for beginners?
expand_more
How personalized is the experience?
expand_more
What kind of support is available?
expand_more
Today's the day

Start building real confidence with numbers and unlock the power of mathematics

You’re only minutes away from getting your personalized number sense coaching plan. Start achieving your math confidence goals today alongside Tim Ricchuiti.