数学奥赛天天练4升5 急...小明在计算有余数的除法时,吧被除数137写成174,这样算出的商比正确的商多3,余数比原来
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(174-137-1)÷3 = 12

137÷12 = 11.5

答:正确的除数是12,余数是5.