Topics 1-4 Review #1 (Questions 1-10)

• 5 places to the right

• 5 places to the left

• 4 places to the right

• 4 places to the left

Answer explanation

Is the number getting BIGGER or SMALLER?

Ask yourself this question to help you determine which way to move the decimal point!

2a. Estimate to find the correct answer to the expression.

349.6 - 112.8

• 270

• 220

• 240

• 250

2b. Estimate to find the correct answer to the expression.

173.3 + 78.4

• 270

• 220

• 240

• 250

2c. Estimate to find the correct answer to the expression.

817.2 - 597.1

• 270

• 220

• 240

• 250

2d. Estimate to find the correct answer to the expression.

108.8 + 159.3

• 270

• 220

• 240

• 250

3. Trina lives 4.2 miles from her school. Richard lives 0.75 times this distance from the school. How far from the school does Richard live? Show your work in the box.

4a. Which expression is NOT equivalent to 1.24 × 0.9?

4b. What is 1.24 x 0.9?

5a. Seth has some boards that are each 0.24 meter long. He places 6 of the boards end-to-end. Shade the grids to model the total length of the boards.

5b. Seth has some boards that are each 0.24 meter long. He places 6 of the boards end-to-end. . What is the total length of the boards? Write your answer in the box.