Unit 4 Quiz 2 Prep

3.24 x 10²

• .0324

• 32.4

• 324.0

• 3.24

5 x 0.01

• 5.01

• 0.05

• 0.5

• 5

8 = _______ x 800

• .001

• 0.1

• 0.01

• 100

1.27 x 0.1

• 1.27

• 127

• 0.127

• 12.7

9 X 0.001

• 0.009

• 0.09

• 0.9

• 9

6.12 X 10³

• 0.612

• 61.2

• 6,120

• 612

Estimate and find the exact product of 25.3 X 12.3

• Estimate: 25 x 10 = 250 Exact: 311.19

• Estimate: 20 X 10 = 300 Exact: 310.19

• Estimate: 25 X 10 = 250 Exact: 31.119

• Estimate: 20 X 10 = 200 Exact: .310

0.49 X 28 Estimate and Solve

• Estimate: 1 X 30 = 30 Exact: 1.372

• Estimate: 0.5 X 20 = 10 Exact: 13.72

• Estimate: 1 X 20 = 20 Exact: 137.2

• Estimate: 1 X 30 = 40 Exact: 13.72

What is another way to solve 5 X (10 X 5.47)

• (5 X 10) X 5.47

• 5 X 10 X 5.47

• 50 X 1 X 5.47

• 5 X 10 X 50.47

Which property allows me to move the parentheses in a multiplication equation?

• commutative property

• associative property

• distributive property

• parentheses