Unit 2 Review

Mathematical Equivalence

ON

Kyle has three pieces of rope. The lengths of the ropes are 241.6 centimeters, 241.38 centimeters, and 264.7 centimeters. What is the difference in length between the longest and shortest pieces of rope?

Mathematical Equivalence

ON

Raj weighs five books and rounds the weights to the nearest tenth. Which of the weights round to 1.5 pounds? Select all correct answers.

• 1.48 pounds

• 1.42 pounds

• 1.45 pounds

• 1.58 pounds

• 1.52 pounds

Which expressions are equivalent to 1.5? Choose all the correct andwers.

Mathematical Equivalence

ON

Lena has $7.00. She earns $10.50 for walking dogs. Then she spends $5.99 for a pair fo earrings. How much money, in dollars, does Lena have left?

Mathematical Equivalence

ON

• fourteen and four hundredths

• 15.84

• sixteen and fifty-six hundredths

Lauren runs 2.76 miles in a track event. Then she runs 0.4 mile home after the event. Which model represents the total number of miles Laren runs?

• 2 ones + 7 tenths + 6 hundredths

• 
• 3 ones + 16 tenths

• 

6.209​ (a)   6.29

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71.6​ (a)   71.63

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