Unit 3 Review

What is the best estimate for

3.8 + 25 + 19.62?

• 4 + 25 + 20 = 49

• 3 + 25 + 19 = 37

• 4 + 30 + 19 = 53

• 3 + 30 + 20 = 53

Solve

3.8 + 25 + 19.62

Answer explanation

Make sure you line up the decimals before you add these numbers together.

What is the best estimate for

8 - 3.25

• 10 - 3 = 7

• 8 - 3 = 5

• 8 - 4 = 4

• 10 - 4 = 6

Solve

8 - 3.25

Answer explanation

Make sure you turn 8 into 8.0 and BORROW when you subtract!

What is the best estimate for

3.7 * 5.4?

• 4 * 6 = 24

• 3 * 6 = 18

• 3 * 5 = 15

• 4 * 5 = 20

Solve

3.7 * 5.4

A rectangular garden is 5.24 meters wide and 7.08 meters long. How much fencing will it take to enclose the garden.

Lila earns $2,725.98 per month. How much money does she have left after paying the following bills.

Rent: $1,250.00

Groceries: $325.78

Electricity: $55.27