Times tables
Choose the tables and the range of numbers, then fill the grid or practise. Whatever you choose goes to the worksheet and the board as it is.
Settings
Fill in the grid
Type the product in each cell, then check; cells accept either set of digits. Choose a cell to see its multiplication as groups.
Groups and arrays
Multiplying adds equal groups. Choose how many groups and how many in each.
Skip counting:
Practise
A round of ten questions from the chosen tables. Type the product; if it is wrong you see why, with the groups, and try again. Questions you missed come back once at the end of the round.
Facts to review (kept on this device)
Only the facts to review and an unfinished round are kept, on this device only, with no name or account.
Use it in class
The worksheet and the board get exactly what is set now. You can edit the worksheet before printing, and its answer key comes on a separate page. On the board everything stays editable, and nothing is added to a live lesson.
How to use it
- Choose the tables you are teaching and the numbers to multiply them by (1 to 10, for example).
- Fill in the grid, then press Check the grid: right cells turn green and cells to correct turn red, and the totals are given.
- Choose a cell to see its multiplication as groups or an array, with the repeated addition and skip counting.
- For class: make an editable worksheet, with its answer key on a separate page, or put the grid or a fact on the board.
Worked examples
7 × 8 from 7 × 7
7 × 7 = 49. In 7 × 8 there are still seven groups, but each has one more, so add 7: 49 + 7 = 56.
9 × 6 from 10 × 6
10 × 6 = 60. 9 × 6 is one group of 6 fewer: 60 − 6 = 54.
4 × 12 by doubling
2 × 12 = 24, and 4 × 12 is double that: 24 + 24 = 48.
Quick reference
- The order does not change a product: 3 × 4 = 4 × 3 = 12.
- Times 0 gives 0; times 1 leaves the number unchanged.
- Times 2 is doubling; times 4 is doubling twice.
- Times 10 moves each digit up one place: 7 × 10 = 70. Times 5 is half of times 10.
- In the 9 times table up to 9 × 10, the digits of each product add up to 9: 18, 27, 36…
You can type with either set of digits. The digit choice only changes how this tool shows numbers, and it is kept on this device. An operation written with ٠–٩ reads from right to left; one written with 0–9, from left to right.
Sources
The products and properties here are standard school arithmetic. The page computes every product itself, and automated tests check the whole table from 0 to 12.