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添加 运 算 符号题
③、3x[7÷5]=3,(3!)÷(7-5)=3,3+7′+5′=3;④、3+[7÷5]=4,[3x7÷5]=4,3!-7+5=4;⑤、3+7-5=5,[3÷7]+5=5,3′+7′+5=5
2020-09-12
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③、3x[7÷5]=3,(3!)÷(7-5)=3,3+7′+5′=3;④、3+[7÷5]=4,[3x7÷5]=4,3!-7+5=4;⑤、3+7-5=5,[3÷7]+5=5,3′+7′+5=5
2020-09-12
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