题目内容

【题目】脱式计算,能简算的要简算

2.6×1.08﹣2.39 (16.58+1.69)÷0.7

35×0.25×0.4×12.5 2.73×99+2.73

【答案】0.418;26.1;43.75;273

【解析】

(1)2.6×1.08﹣2.39

=2.808﹣2.39

=0.418

(2)(16.58+1.69)÷0.7

=18.27÷0.7

=26.1

(3)35×0.25×0.4×12.5

=(35×12.5)×(0.25×0.4)

=437.5×0.1

=43.75

(4)2.73×99+2.73

=2.73×(99+1)

=2.73×100

=273

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