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x Multiply

8 x 9 =

÷ Divide

90 ÷ 9 =

+ Addition

83 + 9 =

- Subtraction

15 - 9 =

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

9 groups of or 9 lots of

Skip count in 9s

Triple the number then triple again

Learn your 9 times tables

For 1 to 9x9 the answer is 1 less than the non 9 number and the number that adds to make 9 e.g. 9x8=72 so 7 is 1 less than 8 and you add 2 to 7 to get nine

Times by 10 and take one of the non 9 number away

**Divide Ã· / by nine:**

How many times does 9 go into

Break into 9 groups

One ninth of

Skip count in 9s and count the 9s

Keep subtracting 9 from the number 18-9-9=0 so 9 goes into 18 exactly 2 times

Reverse your 9 times tables 3x9=27 so 27Ã·9=3 and 27Ã·3=9

**Add + nine:**

Count 9 on from the original number

Add 10 then take 1

Add 5 then add 4

**Take - nine:**

Count 9 back from the original number

Take 10 then add 1

Take 6 then take 3

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

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

9 | 0 | 9 | 18 | 27 | 36 | 45 | 54 | 63 | 72 | 81 | 90 | 99 | 108 |

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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|

9 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 |

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