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你能想出简便方法来计算下面各题吗?26×5+74×5+5 &...

74.5+99×74.5 =74.5×(99+1) =74.5×100 =7450

用简便方法来计算下面各题 25×5+74×5+5 =(25+74+1)×5 =100×5 ...

74.5+(30.5-4.5)的简算 =74.5-4.5+30.5 =70+30.5 =100...

17.74-9.23+5.26 =17.74+5.26-9.23 =23-9.23 =13.7...

25x5+74x5+5 =5x(25+74+1) =5x100 =500

您好: 10.26+5.74×0.5+0.13 =10.26+2.87+0.13 =10....

5.74x101-5.74 =5.74x(101-1) =5.74x100 =574

75乘74分之5 =(74+1)乘74分之5 =74乘74分之5+1乘74分之5 =5+74分...

74×(100-5) = 74×100- 74×5 =7400-370 =7030

15.74÷0.125-5.74x8 =15.74×8-5.74×8 =(15.74-5.74)×8...

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