Real-time multiplayer

Fast-Paced Addition Practice Built for 3rd Grade Skills

Help 3rd graders strengthen addition fluency through quick multiplayer rounds that make everyday math practice feel exciting.

MathIt turns addition practice into a real-time challenge designed for 3rd graders who are building confidence with larger sums and faster mental math. Short rounds keep 8- and 9-year-olds focused while they compete with friends to solve addition problems first. It’s a fun way to sharpen core addition skills that support the bigger math concepts 3rd graders are learning next.

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

Brain Training Benefits

Improve mental math speed, working memory, and cognitive processing through competitive practice.

100% Free to Play

All core features are free. Multiplayer battles, difficulty levels, leaderboards, and 20 languages included.

All Math Operations

Addition, subtraction, multiplication, division, square roots, and powers. Full arithmetic coverage.

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Addition with Regrouping

Grade 2–3

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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

173 + 81 = ? Show answer

254

76 + 448 = ? Show answer

524

79 + 294 = ? Show answer

373

349 + 165 = ? Show answer

514

340 + 60 = ? Show answer

400

360 + 127 = ? Show answer

487

Skills you’ll practice

Multiplication Division Mental Math

Addition in 3rd grade

Three-digit addition adds a second carry, and that is where it breaks — the tens carry is usually handled and the hundreds carry is usually dropped. This is also the grade to start estimating first: knowing that 380 + 290 should land near 670 turns a wrong answer into something visible rather than something marked later.

Third grade belongs to the times tables. Multiplication and division are introduced together, area and arrays give them a picture, and rounding to the nearest ten and hundred begins. It is the highest-leverage year in elementary arithmetic: the tables learned here carry fractions, long multiplication and mental math for the rest of school, and gaps left now surface for years.

3rd graders are expected to add three-digit numbers with carrying, and estimate a sum before calculating it; after that comes three-digit addition with carrying, and mental strategies for near numbers.

Watch for carrying correctly in the tens but dropping it in the hundreds on longer sums.

More than one way to practice math

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

Frequently Asked Questions

How can I help my child get faster at addition?

Target the strategies rather than the sums. Make-a-ten and near-doubles cover most of the facts children find hard, and both depend on knowing number bonds to 10 instantly. Short daily practice beats long sessions — recall is built by frequency.

What addition should a 3rd grader know?

Enough to add three-digit numbers with carrying, and estimate a sum before calculating it.

Why does my 3rd grader keep getting addition wrong?

Most often: carrying correctly in the tens but dropping it in the hundreds on longer sums.

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Fast-Paced Addition Practice Built for 3rd Grade Skills

More than one way to practice math

Kindergarten object games

Grade practice games

Logic puzzles

Mental-math lessons

Multiplayer math battles

Features

Brain Training Benefits

100% Free to Play

All Math Operations

Play these free in your browser

Addition with Regrouping

Try it now — 60-second drill

Sample problems

Skills you’ll practice

Addition in 3rd grade

More than one way to practice math

Frequently Asked Questions

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