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102 60简便方法计算

60乘以(102-1)=60乘101=6060

102除以61用简便方法怎么计算?解:直接运算最简便原式=102÷61=102/61=1又41/61

102*28=(100+2)*28=100*28+2*28=2800+56=2856

102x45=(100+2)*45=100*45+2*45=4500+90=4590小同学,请采纳,谢谢 了

102*63=100*63+2*63=6300+126=6426

102*39=(100+2)*39=100*39+2*39=3900+78=3978

原式=(100+2)x26=100x26+2x26=2600+52=2652

102X65=100X65+2x65=6500+130=6630

102 x 76 = ( 100+ 2) x 76 =7600+152=7752 完全口算.

65.5102=65.5*(100+2)=65.5*100+65.5*2=6550+131=6681望采纳,谢谢

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