题目内容
【题目】计算下面各题能简便的尽量简便
24×(
+
﹣
)
[
×(
﹣0.25)+
]÷0.5
0.374×48+0.62×37.4﹣3.74
13.92﹣(1.19+9.92)﹣2.81
【答案】(1)22 (2)1 (3)37.4 (4)0
【解析】
(1)24×(
+
﹣
)
=24×
+24×
﹣24×![]()
=18+20﹣16
=22
(2)[
×(
﹣0.25)+
]÷0.5
=[
×
+
]÷0.5
=[
+
]÷0.5
=![]()
=1
(3)0.374×48+0.62×37.4﹣3.74
=0.374×48+62×0.374﹣0.374×10
=0.374×(48+62﹣10)
=0.374×100
=37.4;
(4)13.92﹣(1.19+9.92)﹣2.81
=(13.92﹣9.92)﹣(1.19+2.81)
=4﹣4
=0
练习册系列答案
相关题目