10 x 8 = 80
10 x 4 = 40
10 x 2 = 20
Can you see what is happening here, to multiply ANY number by 10 you just add a zero to the number.
2234 X 10 = 22340
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10
1600
8.0 × 10-9 written in regular notation is: 0.0000000080
There are 10 millimetres in one centimetre. Therefore, 8 centimetres is equal to 8 x 10 = 80 millimetres. Therefore, 8 centimetres is equal to 80/5 = 16 times longer than 5 millimetres.
8 times 15 times 50 is equal to 6,000.