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
练习册系列答案
相关题目