Positive/Negative Rational Number Operations TN Ready Review

Which expression is equivalent to -3.5 - 3.75?

• -3.5 + (-3.75)

• -3.5 + 3.75

• 3.5 - (-3.75)

• 3.5 - 3.75

Which number line models the sum of 5 +(-7) correctly?

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• 
• 
• 

What is the value of 3.75 - 10.5 + 2.5?

• -16.75

• -11.75

• -9.25

• -4.25

A person buys 25 game tokens that cost $1.25 each. Which equation best represents the effect on the person's bank account?

A mathematician simplifies the expression mentally.

5(-7.9) - 6.9(-12 - 44)

What is the best estimate of the value of the expression?

• -425

• -350

• 350

• 425

• -21

• -20.5

• 20.5

• 21

Which situation involves opposite quantities combining to make 0?

• A cat gains 2 pounds during the winter and then loses 2 pounds during the spring.

• A child checks out 5 books from the library one week and then checks out 2 more books from the library the next week.

• A grocery store sells 25 containers of coffee on Monday and sells 15 more containers of coffee on Friday.

• A student rides 3 miles to school in the morning and then rides 3 miles to music lessons after school.

• -37.8

• -21

• 21

• 37.8