Multiplication With Powers of Ten and Decimals

• 5616

• 561.6

• 56.16

• 5.616

10 x 0.691 =

• 691

• 6.91

• 69.1

• 6910

__________ is a very useful way of writing down large or small numbers.

• decimal

• base

• powers of ten

• exponent

When dividing with decimals it is important to multiply both numbers by a power of ten equal to the number with the most decimal places, then divide.

• True

• False

Powers of Ten

When we multiply by powers of ten, we move the decimal to the ​ (a)   .

When we divide by powers of ten, we move the decimal to the ​ (b)   .

• right

• left

Solve.
43.67 x 10²

• 4367

• 0.4367

• 436.7

54.62 x 10

• 546.2

• 54.6

• 54.2

• 5.462

0.4 X 10 =

• 0.04

• 0.004

• 4.0

• 0.4

Multiply by 10. Fill in the blank.

30, 3, ____, 0.03

34.86 x _____ = 34,860

• 10

• 1000

• 1/10

• 100