Where should parentheses be added to make the following expression true? 10 + 10 ÷ 10 + 10 * 3 = 36

10 + (10 ÷ 10) + (10 * 3)

((10 + 10) ÷ 10 + 10) * 3

(10 + 10) ÷ 10 + 10 * 3

((10 + 10) ÷ 10) + (10 * 3)

Answer:
((10 + 10) ÷ 10 + 10) * 3

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