Apps

TalentJR apps

How the apps work →
Free game · ages 8–14

Number crossword — a maths crossword for kids

A small grid where every row (across) and every column (down) is a sum. Some numbers are missing — fill the gaps so all six sums are true. Every grid has exactly one answer.

How to play Number Crossword

  1. Choose easy (+ and −, numbers to 9), medium (to 30) or hard (with × grids).
  2. Find a sum with only one missing number and work it out. Then another sum will have one gap left.
  3. Type the numbers and press ✓ Check. If a sum is not true, you see which one.
  4. 4 grids a round — complete all 4 for the Crossword Cracker badge.

What your child learns

Class 2 to 9 · ages 8–14

Number Crossword is a maths crossword puzzle for kids: three sums across and three down share the same squares. Children find the sum with only one missing number, solve it, and that unlocks the next — great practice for missing-number problems and inverse operations, from easy + and − to hard grids with ×.

Tips to get better at Number Crossword

  1. Start with any sum that has only one empty square.
  2. Use the opposite operation: if ? + 7 = 15, then 15 − 7 = ?
  3. After each number, check the sum going the other way through that square.

Skills it builds

  • ✓ Addition, subtraction and multiplication facts
  • ✓ Missing-number problems (inverse operations)
  • ✓ Working step by step
Learn it: Mental Maths MasteryQuick sums in your head make every grid faster. Free lessons, badges and certificates.

More free games

Maths Riddles“I am a number…” riddles and short logic riddles with one answer. Make the TargetUse four numbers once with + − × ÷ and brackets to make 24. Magic SquareFill the gaps so every row, column and diagonal adds up the same. Sudoku for Kids4×4 and 6×6 sudoku. One answer, always a next step. Maths Cage PuzzleGrids where cages must make 6+, 12× or 2÷. One answer each. Multiplication RaceRace your car with times tables 2–20. Beat your ghost or a friend. Multiplication WarFlip two cards, multiply fast, win the pile from the computer. Mental Maths RaceAdd, subtract, multiply and divide in your head against the clock. All maths games for kidsTimes tables, mental maths, fractions and maths puzzles in one place. See all 31 gamesMaths, English, memory and puzzle games — all free. My learningYour best scores, game badges, challenges and time.

Number Crossword — questions

What is a number crossword?

A maths crossword: instead of words, the rows and columns are number sentences like 4 + 5 = 9. Where a row and a column cross, they share a number.

Does every grid have only one answer?

Yes. The gaps are chosen so that you can always find a sum with just one missing number — so every number can be worked out, one step at a time, and there is only one answer.

How do I find a missing number?

Use the opposite operation: in ? + 5 = 9, take away: 9 − 5 = 4. In 6 × ? = 24, divide: 24 ÷ 6 = 4.

Is it free?

Yes — free in the browser on phones, tablets and computers.

गणित क्रॉसवर्ड कैसे हल करें?

हर पंक्ति और स्तंभ एक सवाल है। पहले वह सवाल चुनें जिसमें सिर्फ़ एक संख्या गायब हो — उल्टी क्रिया से उसे निकालें।