Do NOT use a mouse.
Multiply x * . () by eight:
8 groups of or 8 lots of
Skip count in 8s
Double the number then double and double again
Learn your 8 times tables
Divide ÷ / by eight:
How many times does 8 go into
Break into 8 groups
One eighth of
Skip count in 8s and count the 8s
Keep subtracting 8 from the number 24-8-8-8=0 so 8 goes into 24 exactly 3 times
Reverse your 8 times tables 3x8=24 so 24÷6=3 and 24÷3=6
Add + eight:
Count 8 on from the original number
Add 5 then add 3 or 2 and 6 etc.
Take - eight:
Count 8 back from the original number
Take 5 then take 3 or 4 then 4
Number in grey (left) x number in grey (top) = number in white OR number in white ÷ number in grey = other number in grey.
Number in grey (left) + number in grey (top) = number in white OR number in white - number in grey = other number in grey.