(7225-104乘15)/55简便方法怎么做

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(7225-104乘15)/55简便方法怎么做(7225-104乘15)/55简便方法怎么做(7225-104乘15)/55简便方法怎么做(7225-104X15)/55=(7225/5-104X15

(7225-104乘15)/55简便方法怎么做
(7225-104乘15)/55简便方法怎么做

(7225-104乘15)/55简便方法怎么做
(7225-104X15)/55
=(7225/5-104X15/5)/11
=(1445-104X3)/11
=(1445-312)/11
=1133/11
=103