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10.1x5.2%0.52怎么简便运算

原式=101×0.52-0.52×1 =0.52×(101-1) =0.52×100 =52

=5.2×10.1-5.2×0.1 =5.2(10-1-0.1) =5.2×10 =52

10.1x5.2一0.52 =10.1x5.2一0.1x5.2 =(10.1一0.1)x5.2 =10x5.2 =52 简便运算的思路是: (1)运用运算的性质、定律等,本例采取结合律。 (2)拆数或转化时,数的大小不能改变,本例对0.52拆转成0.1x5.2。

5.2×10.1- 0.52 =0.52×101- 0.52×1 =0.52×(101-1) =0.52×100 =52

(5十0.2)X(10十0.1)=50十0.5十2十0.02二52.52

10.1*5.2-0.52 =(10+0.1)*5.2-0.52 =52+0.52-0.52 =52

10.1×1.05-2.52÷24 =(10+0.1)x1.05-2.52÷6÷4 =10x1.05+0.1x1.05-0.42÷4 =10.5+0.105-0.105 =10.5

5.2x10.1 =5.2x10+5.2x0.1 =52+0.52 =52.52

5.2×10.1 =5.2×10+5.2×0.1 =52+0.52 =52.52

5.2乘10.1 =5.2x(10+0.1) =5.2x10+5.2x0.1 =52+0.52 =52.52

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