Number patterns in Number Squares
| X | 1 | 2 | 3 | 4 |
| 1 | 1 | 2 | 3 | 4 |
| 2 | 2 | 4 | 6 | 8 |
| 3 | 3 | 6 | 9 | 12 |
| 4 | 4 | 8 | 12 | 16 |
| 5 | 5 | 10 | 15 | 20 |
Look at this section from a multiplication square
Can you say how the rule for working out which numbers go in the white squares ?
Quest of Nine
The Book
| 12 | 21 | |||
| 16 | 24 | |||
| 25 | ||||
| 30 | 36 | 42 | ||
| 42 |
Here is a different part of the multiplication square. Can you fill in the missing numbers?
(look for horizontal and vertical patterns)
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