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(-0.5)+34-1+2.75+(-71-2)算术结果等于多少
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(-0.5)+34-1+2.75+(-71-2)算术结果等于多少
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答案和解析
(-0.5)+34-1+2.75+(-71-2)
=33.5-1+2.75-73
=32.5+2.75-73
=35.25-73
= -37.75
=33.5-1+2.75-73
=32.5+2.75-73
=35.25-73
= -37.75
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