Mathematics Knowledge第 51 / 120 题
Simplify: 2(3 + 4) - 5.
a.3
b.7
c.9
d.12
解析
Following order of operations, first add inside the parentheses to get 7. Multiply by 2 to get 14, then subtract 5 to reach 9.
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Following order of operations, first add inside the parentheses to get 7. Multiply by 2 to get 14, then subtract 5 to reach 9.
免费刷完整 120 道题库 — 无需注册。