Mastering Decimal Multiplication

Estimate the product of 4.56 and 3.1 by rounding each number to the nearest whole number first.

• 12

• 13

• 14

• 15

• 0.21

• 2.1

• 0.03

• 0.001

What is the product of 12.5 and 4.8?

• 60

• 60.0

• 600

• 6.0

Estimate the product of 6.81 and 2.97 by rounding to the nearest tenth before multiplying.

• 20.2

• 20.0

• 20.3

• 20.1

• 0.008

• 0.08

• 0.8

• 0.0008

A rectangle has a length of 5.2 meters and a width of 3.5 meters. What is the area of the rectangle in square meters?

• 18.2

• 182

• 18.20

• 8.2

Estimate the product of 9.99 and 0.99 by rounding to the nearest whole number.

• 9

• 10

• 11

• 12

• 1

• 10

• 0.1

• 1.0

A car travels 0.65 miles in 1 minute. How many miles will it travel in 10 minutes?

• 6.5 miles

• 65 miles

• 0.065 miles

• 650 miles

Estimate the product of 7.56 and 8.44 by rounding to the nearest integer.

• 63

• 64

• 65

• 66