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Understanding 10

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x Multiply
9 x 10 =
÷ Divide
30 ÷ 10 =
+ Addition
16 + 10 =
- Subtraction
96 - 10 =

Ten, 10, X

Multiply x * . () by ten:
10 groups of or 10 lots of
Answer ends in 0
Add a zero to the right of the number
Skip count in 10s
Learn your 10 times tables

Divide ÷ / by ten:
How many times does 10 go into
Break into 10 groups
One tenth
Take a zero from the number if it ends in 0
Reverse 10x tables 3x10=30 so 30÷10=3 and 30÷3=10

Add + ten:
Add one to the tens digit

Take - ten:
Take one from the tens digit
Know your bonded pairs 8+2=10 so 10-2=8 and 10-8=2

Number in grey (left) x number in grey (top) = number in white OR number in white ÷ number in grey = other number in grey.

x0123456789101112
100102030405060708090100110120

Number in grey (left) + number in grey (top) = number in white OR number in white - number in grey = other number in grey.

+0123456789101112
1010111213141516171819202122

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