1224等于多少简便计算?
1:(1 + 2) × 2 × 42:((1 + 2) × 2) × 43:(1 + 2) × (2 × 4)4:(1 + 2) × 4 × 25:((1 + 2) × 4) × 26:(1 + 2) × (4 × 2)7:(2 + 1) × 2 × 48:((2 + 1) × 2) × 49:(2 + 1) × (2 × 4)10:(2 × (1 + 2))...1224怎么算? 答案 1:(1 + 2) × 2 × 42:((1 + 2) × 2) × 43:(1 + 2) × (2 × 4)4:(1 + 2) × 4 × ...
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