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Order of Operations

In Problems 7–10, insert grouping symbols to make each equation true.

• 7 17 − 6 + 1 = 10

• 8 8 − 8 × 2 + 3 = 0

• 9 5 × 6 − 1 + 3 = 28

• 10 5 + 3 × 8 ÷ 2 = 17

For the following problem, use grouping symbols to write an equation that represents the situation. Then solve the problem.

• 11 Samantha made a photo book. She put 8 pictures on each page. She filled 7 pages with pictures of her trip to Washington, D.C., and 5 pages with pictures of her trip to the Grand Canyon. How many pictures are in her photo book?

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