题目内容

【题目】计算,怎样计算简便就怎样计算:

7.08-(2.54+2.38) 5.74×0.25×4 6.37×0.75+0.25×6.37 12.6×5+0.5

【答案】2.16;5.74;6.37;63.5

【解析】

7.08-(2.54+2.38)

=7.08-4.92

=2.16

5.74×0.25×4

=5.74×(0.25×4)

=5.74×1

=5.74

6.37×0.75+0.25×6.37

=(0.75+0.25)×6.37

=1×6.37

=6.37

12.6×5+0.5

=63+0.5

=63.5

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