PARCC Grade 7 Math 3

Question 1

What is -3/4 + 1/2?

Accepted Answer

-1/4

Answer

Rewrite 1/2 as 2/4, then -3/4 + 2/4 = -1/4.

Question 2

A map scale shows 1 inch = 25 miles. How many miles do 3.5 inches represent?

Accepted Answer

87.5 miles

Answer

Multiply 3.5 × 25 = 87.5 miles.

Question 3

If a number increased by 15% equals 92, what was the original number?

Accepted Answer

80

Answer

Divide 92 by 1.15 to get 80.

Question 4

What is the surface area concept used to find the area of a rectangle 7 m by 9 m?

Accepted Answer

63 m²

Answer

Area = length × width = 7 × 9 = 63 m².

Question 5

Solve: -2x = 18.

Accepted Answer

-9

Answer

Divide both sides by -2 to get x = -9.

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