Maths crossword is a grid of crossed calculations with one number missing from each. Below is the number bank, with the missing numbers and some similar ones that do not fit. Drag each number into its gap: only the one that makes the calculation correct will go in. Both teams get the same grid, and the first to complete it wins.

3, 4 or 6 calculations on the grid, for Easy, Medium or Hard.
Add and subtract, or all four; from Year 3, on Medium or Hard, all four appear.
10, 20, 50 or 100: the limit rises with the year group and can also be set by hand.
The screen splits in two and each team plays on its own half at the same time.
One child plays on the whole screen at their own pace: on the whiteboard, a computer or a tablet.
Yes. Under Operations choose Add and subtract. With All four you also get multiplication and exact division from the times tables.
It will not go in: it returns to the bank and a message asks them to redo the calculation. No points are lost.
No. The same grid never shows two identical calculations.
You can play 5 free games without signing up. After that, a one-off payment of €9.99 unlocks all 78 games for ever, on all your devices. There is no subscription.
No. It opens in the browser of the interactive whiteboard, panel, computer, tablet or iPad. Once loaded, it also works offline.
Hundreds, tens and onesAn educational place value game for the interactive whiteboard.
Greater, less or equalAn educational game for comparing numbers on the interactive whiteboard.
Make tenAn educational number bonds game for the interactive whiteboard.
The clockAn educational game for telling the time on the interactive whiteboard, with a large analogue clock: a thick blue hour hand and a thin red minute hand.Maths crossword
Play now