Real-time multiplayer

Build Fast Mental Math Skills for 9-Year-Olds

Help 9-year-olds master quick multiplication and division thinking with fun mental math games they can play every day.

MathIt is a great mental math game for 9-year-olds who are ready to solve more in their heads, not just on paper. Kids can practice fast multiplication facts, division basics, and quick number strategies through fun games, age-appropriate lessons, and short drills that keep them engaged. With solo practice, logic challenges, and even multiplayer rounds, MathIt helps 9-year-olds build speed, accuracy, and confidence in mental math.

Loved by 100,000+ users who use MathIt to build stronger math skills for kids, students, families, and adults.

More than one way to practice math

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Features

Everything you need to make math practice stick

Fair Scoring System

First correct answer earns 2 points, second earns 1 point. Speed and accuracy both matter.

Real-Time Multiplayer

Compete with 2-5 players simultaneously in real-time math battles. Every millisecond counts!

20 Languages

Play in your native language. MathIt supports English, Spanish, French, German, Russian, Japanese, and 14 more.

Play these free in your browser

Times Tables

Grade 3+

Adding Doubles

Grade 1–2

Number Bonds

Grade 1–2

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Try it now — 60-second drill

Answer as many as you can in 60 seconds. No sign-up — this is the same practice you get in the MathIt app.

Sample problems

12 × 7 = ? Show answer

84

660 − 621 = ? Show answer

39

751 − 231 = ? Show answer

520

360 + 798 = ? Show answer

1158

393 + 789 = ? Show answer

1182

8 × 8 = ? Show answer

64

Mixed arithmetic in 4th grade

Fourth grade combines operations on multi-digit numbers, and estimation stops being optional. A student who answers without a rough expectation has no way to notice a result that is wildly wrong — and at this size, errors are large rather than subtle. Estimating first is a habit that pays for itself immediately.

Fourth grade extends the tables to 12 × 12 and puts them to work — multi-digit multiplication, division with remainders, factors and multiples, and the first serious fraction work. Fractions are where the year is won or lost, and they lean directly on multiplication: finding common denominators is a times-table exercise wearing a disguise.

4th graders are expected to combine operations on multi-digit numbers and estimate before calculating; after that comes mixed operations with multi-digit numbers, and estimation.

Watch for answering without estimating first, so a wildly wrong result goes unnoticed.

More than one way to practice math

Optional ad-free subscription: $0.99/mo or $5.99/yr

Frequently Asked Questions

Is mixed practice better than practising one operation at a time?

Both have a use. Practising one operation builds the facts; mixing them builds the habit of reading the problem before answering, which is what breaks down in word problems and on tests. Use single-operation practice to fix a gap and mixed practice to keep it.

What mixed arithmetic should a 4th grader know?

Enough to combine operations on multi-digit numbers and estimate before calculating.

Why does my 4th grader keep getting mixed arithmetic wrong?

Most often: answering without estimating first, so a wildly wrong result goes unnoticed.

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Build Fast Mental Math Skills for 9-Year-Olds

More than one way to practice math

Kindergarten object games

Grade practice games

Logic puzzles

Mental-math lessons

Multiplayer math battles

Features

Fair Scoring System

Real-Time Multiplayer

20 Languages

Play these free in your browser

Times Tables

Adding Doubles

Number Bonds

Try it now — 60-second drill

Sample problems

Mixed arithmetic in 4th grade

More than one way to practice math

Frequently Asked Questions

Related Pages