B. Enclose in parentheses the expressions you need to do first. Then evaluate each expression. (GEMDAS?)

1. 15 + 30 ÷ 6 + 8 = ____

2. 20 - 9 + 7 × 3 = ____

3. 5 × 9 - 5 + 3 = ____

4. 12 + 40 - 9 + 7² = ____

5. 42 ÷ 6 × 7 + 3 = ____

6. 6 + 9 - 8 - 5 + 11 = ____

7. 48 ÷ 6 - 4 × 2 + 35 = ____

8. 7 + 12 ÷ 6 × 5= ____

9. 72 ÷ 8 × 3 + 8² - 50 = ____

10. 28 - 5 + 24 ÷ 8 + 2⁵ - 16 = ____

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