题目内容
能简算的要简算。
(1)2.5×1.25×3.2
(2)(1.25×0.6+
×1.25)÷
(3)3.68÷[1-(2.9-
÷1.4)]
(1)原式=2.5×0.4×8×1.25
=1×10
=10
=1×10
=10
(2)原式=1.25×(0.6+
)÷
=1.25×5
=6.25
=1.25×5
=6.25
(3)原式=3.68÷[1-(2.9-2)]
=3.68÷0.1
=36.8
=3.68÷0.1
=36.8
练习册系列答案
相关题目