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15.6+6.2一15.6+16.2怎样简便

15.6+6.2一15.6+16.2=15.6-15.6+6.2+16.2=6.2+16.2=22.4

答:15.6十6.2一15.6+6.2 =15.6一15.6十6.2+6.2 =0+12.4 =12.4

15.6加6.2减15.6加6.2=6.2+6.2=12.4

=(156+15.6)-(6.2-6.2)=171.6满意吗

先算6.2加6.2答案为12.4再加上15.6为25 156减28等于128

15.6加6.2减去15.6加6.2用脱式计算15.6加6.2减去15.6加6.2=(15.6-15.6)+(6.2+6.2)=0+12.4=12.4

156+6.2-15.6-6.2=156-15.6+(6.2-6.2)=156-15.6=140.4

15.6 + 18.2-15.6 + 18.2=18.2*2=36.4

156+(6.2+6.2)-15.6=156-(15.6-12.4)=156-3.2=152.843*102=43*100+43*2=4300+86=4386

原式=15.6x(7.8-1-2.1)=15.6x(6.8-2.1)=15.6x4.7=73.32供参考.

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