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# Understanding 4

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Do NOT use a mouse.

x Multiply
12 x 4 =
÷ Divide
12 ÷ 4 =
72 + 4 =
- Subtraction
62 - 4 =

### Four, 4, IV

Multiply x * . () by four:
4 groups of or 4 lots of
Skip count in 4s
Double the number then double again

Divide Ã· / by four:
How many times does 4 go into
Break into 4 groups
One quarter of
Skip count in 4s and count the 4s
Keep subtracting 4 from the number 12-4-4-4=0 so 4 goes into 12 exactly 3 times
Reverse your 4 times tables 3x4=12 so 12Ã·4=3 and 12Ã·3=4

Count 4 on from the original number
Learn addition rules e.g. 5+4=9 so 65+4=69

Take - four:
Count 4 back from the original number
Learn subtraction rules e.g. 7-4=3 so 67-4=63

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

x0123456789101112
404812162024283236404448

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

+0123456789101112
445678910111213141516

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