Question

64-2 .5×4 .1的脱式计算怎么简便运算？

Answer 1

递等式计算64-2.5×4.1
解题思路:四则运算规则(按顺序计算,先算乘除后算加减,有括号先算括号,有乘方先算乘方)即脱式运算(递等式计算)需在该原则前提下进行
解题过程:
64-2.5×4.1

=64-10.25

=53.75

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Answer 2

64－2.5×4.1
=64－(2.5×4+2.5×0.1)
=64－(10+0.25)
=64－10－0.25
=54－0.25
=53.75

Answer 3

64-2.5x4.1
＝64-2.5x（4+0.1）
＝64-2.5x4-2.5x0.1
＝64-10-0.25
＝54-0.25
＝53.75
最后结果等于53.75。

Answer 4

64-2.5*4.1
=64-2.5*(4+0.1)
=64-2.5*4-0.25
=64-10-0.25
=54-0.25
=53.75

Answer 5

64-2.5X（4+0.1）
=64-2.5乂4-2.5X0.1
=64-1-0.25
=63-0.25
=62.75