题目内容

【题目】计算下列各题,能简算的要简算.

0.125×3.2×0.25 10.4×0.9+1.04

7.2÷2.5÷4 1.4+2.6÷2﹣1.5×0.2

【答案】(1)0.1 (2)10.4 (3)0.72 (4)2.4

【解析】

(1)0.125×3.2×0.25

=(0.125×0.8)×(4×0.25)

=0.1×1

=0.1

(2)10.4×0.9+1.04

=10.4×(0.9+0.1)

=10.4×1

=10.4

(3)7.2÷2.5÷4

=7.2÷(2.5×4)

=7.2÷10

=0.72

(4)1.4+2.6÷2﹣1.5×0.2

=1.4+1.3﹣0.3

=1.4+(1.3﹣0.3)

=1.4+1

=2.4

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