Insert parentheses to make each sentence true:

32 + 8 * 3 : 4 = 30

15 - 3 : 1 * 6 = 2

18 : 3 + 3 - 2 = 1

16 - 8 : 4 + 10 = 12

5 * 5 + 5 - 5 = 45

Steps to solve A=1/2b•h

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