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5.3×2.6+4.7x2.6简算

5.3*2.6+4.7x2.6=(5.3+4.7)*2.6=10*2.6=26

解:2.6*5.3+2.6=2.6*5.3+2.6*1=2.6*(5.3+1)=2.6*6.3=16.38

2.6*3.7+5.3*2.6+2.6简便运算=2.6x(3.7+5.3+1)=2.6x10=26

2.6X(5.3+4.7)=2.6X10=26

0.26x53+4.7x2.6=0.26x53+47x0.26=0.26x(53+47)=0.26x100=26

=19.2921

你好!4.1*2.6+2.6*5.9=(4.1+5.9)*2.6=10*2.6=26仅代表个人观点,不喜勿喷,谢谢.

12.6一4.7x5.3简便运算12.6-4.7*5.3=12.6-(5-0.3)*(5+0.3)=12.6-(5-0.3)=12.6-(25-0.09)=12.6-25+0.09=-12.31.

6.45x4.7+5.3x6.5=(6.5-0.05)x4.7+5.3x6.5=6.5x5.3+6.5x4.7-4.7x0.05=6.5x(5.3+4.7)-4.7x0.05=6.5x10-0.235=64.765(不知道这样算不算简算)

公式是乘法分配律过程为原式=19.7*(5.3+4.7)=19.7*10=197

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