Unit 4 Math Review

Where Robert lives, the average high temperature in July is 87.4°F. The average low temperature in July is 64.8°F. Which equation best estimates the difference between the average high and low temperatures in July?

• A. 87 - 65 = 22

• B. 88 - 64 = 24

• C. 88 - 65 = 23

• D. 87 - 64 = 23

Which equation is shown by the decimal grid?

• A. 1 - 0.05 = 0.95

• B. 0.95 - 0.08 = 0.87

• C. 0.95 - 0.8 = 0.87

• D. 0.87 - 0.08 = 0.79

Which two expressions have a sum greater than 4?

• A. 2.1 + 1.9

• B. 0.9 + 2.1

• C. 3.4 + 1.1

• D. 1.2 + 1.8

• E. 3.2 + 2.8

1. Which decimal grid can be used to solve this problem?

    

0.6 + 0.2 = ______

• 
• 
• 
• 

At the long-jump event, Ben’s first jump was 6.2 meters. His second jump was 5.9 meters. How much longer was his first jump?

• A. 0.3 meters

• B. 0.7 meters

• C. 1.7 meters

• D. 12.1 meters

Which equation represents the sum of the models?

• A. 0.7 + 0.83 = 0.90

• B. 0.7 + 0.83 = 1.53

• C. 0.7 + 0.083 = 0.90

• D. 0.7 + 0.083 = 1.53

Which model represents the equation 1.57 − 1 = 0.57?

• 
• 
• 
• 

A student has $2.12. The student buys a snack for $1.65. How much money does the student have left?

• A. $0.47

• B. $0.53

• C. $0.77

• D. $0.83

Ashley’s teacher drove 276.6 miles to her friend’s house for the weekend. Then, she drove another 12.89 miles to the beach. What is her total driving distance?

• A. 289.59 miles

• B. 4,055 miles

• C. 2,894 miles

• D. 289.49 miles

Margaret walked 2.38 miles yesterday. She walked 1.19 miles today. About how many miles did Margaret walk both days? Select all that apply.

• A. 3 miles

• B. 3.5 miles

• C. 3.6 miles

• D. 4.7 miles

• E. 5 miles