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x Multiply

11 x 0 =

÷ Divide

0 ÷ 8 =

+ Addition

0 + 0 =

- Subtraction

2 - 0 =

**Multiply x * . () by zero:**

No groups of or no lots of

The answer is always zero

3 lots of nothing is nothing

**Zero divided by or divided by zero:**

Zero divided by any number is zero
**You cannot divide a number by zero**

**Add + zero:**

The original number stays the same

7 plus nothing is 7

**Take - zero:**

The original number stays the same

9 take nothing is 9

Number in grey (left) x number in grey (top) = number in white __OR__ number in white ÷ number in grey = __other__ number in grey.

x | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|

0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |

Number in grey (left) + number in grey (top) = number in white __OR__ number in white - number in grey = __other__ number in grey.

+ | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|

0 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |

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