Powers of Ten Multiply

Which of the equations correctly multiply by a power of 10? (There is more than one correct answer)

• 3.45 x 10³ = 3,450

• 3.48 x 10⁵ = 34,800,000

• 1673.1 ÷ 10² = 16.731

• 1673.1 ÷ 10² = 16.731

Look at the number below. How does the value of the underlined digit compare to the value of the digit to its left? (Choose all that apply.)

7.77

• It is one tenth the value of the digit to the right.

• It is 10 times the value of the digit to the right.

• It is one tenth the value of the digit to the left.

• It is 10 times the value of the digit to the left.

The value of the digit 3 in 743,958 is ___ times the value of the 3 in 341.

• 10,000

• 1,000

• 100

• 10

Fill in the blank with the missing answer:
87 × ___ = 87,000

• 10²

• 10³

• 10⁴

• 10

87 x 1000 =

Mathematical Equivalence

ON

The value of the digit 2 in 6.002 is ___ times the value of the 2 in 2.006.

• 1,000

• 100

• 0.001

• 0.01

A way of writing a number that shows the value of each of its digits using powers of 10.

• exact form (ten)

• estimate form (10)

• expanded form (power of 10)

• expression form (5 + 5 = 10)

What number is 10 times as much as 700?

• 7

• 7,000

• 70

• 70,000

712 x A = 7,120

• 1

• 10

• 100

• 1,000