5thgrade_Ch.5

Estimate the product: 1.54 × 12.

• 15

• 18

• 20

• 25

Estimate the product: 6.1 × 4.

• 24

• 25

• 26

• 27

Estimate the product: 72 × 0.76

• 50

• 55

• 60

• 65

A space probe is 756,600 miles from Earth. The probe travels 9.7 miles farther from Earth each second. About how far is the space probe from Earth after 60 seconds?

• 757,182 miles

• 775,200 miles

• 757,300 miles

• 757,400 miles

A bucket weighs 1.4 pounds. One gallon of sand weighs 13.4 pounds. About how much does the bucket and 4 gallons of sand weigh in all?

• 58 pounds

• 55 pounds

• 56 pounds

• 57 pounds

An 8.2-centimeter-tall plant grows 2.9 centimeters each month for 1 year. About how tall is the plant at the end of 1 year?

• 43 cm

• 34.8 cm

• 15.8 cm

• 29 cm

A motorcycle travels 52.3 miles using 1 gallon of gasoline. A car travels 29.8 miles using 1 gallon of gasoline. About how much farther does the motorcycle travel using 6 gallons of gasoline than the car?

• 135 miles

• 178.8 miles

• 313.8 miles

• 135.8 miles

Round 9.7 to the nearest whole number. What is the result?

• 9

• 10

• 11

• 8

Fill in the blank: 0.23 x 3 = ________.

• A) 0.46

• B) 0.69

• C) 0.92

• D) 1.15

What is the product of 0.48 and 4?

• 1.44

• 1.92

• 2.40

• 2.88