Everyday Math Grade 5 Unit 8 Review

A typical elephant’s heart beats about 30 times per minute.

How many times does a typical elephant’s heart beat in one hour?

• 60

• 180

• 1,800

• 18,000

A typical elephant’s heart beats about 30 times per minute.

How many times does a typical elephant’s heart beat in one day?

• 1,800

• 43,200

• 720

• 21,600

A hummingbird “flaps” its wings by rotating them back and forth. A small hummingbird can flap its wings about 80 times per second.

About how many times does a small hummingbird flap its wings in one hour?

Hint: 1 hour = 3,600 seconds

• 3,600

• 7,800

• 240,000

• 288,000

The neighbors want to put a fence around the play area. They plan to buy chain-link fencing sold by the centimeter. How many centimeters of fencing should they buy to completely surround the play area?

• 50.4 cm

• 504 cm

• 5040 cm

• 158.6 cm

What is the area of the playing surface in square meters?

• 158 3/5 square meters

• 25 1/5 square meters

• 158 1/5 square meters

• 20 2/5 square meters

40 centimeters is equal to how many meters?

• 4/100 m

• 0.04 m

• 40/1000 m

• 0.40 m

• 4 2/6

• 4 14/48

• 1 5/8

• 3

• 16 1/3 square feet

• 65 1/6 square feet

• 42 2/3 square feet

• 56 1/6 square feet

• 56502

• 56.502

• 565.02

• 5650.2

• 189

• 1.89

• 18.9

• 1890