脱式计算:0.75×18÷0.15; 2.07÷0.23÷0.45;&nb
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/06/24 07:31:54
脱式计算:
0.75×18÷0.15; 2.07÷0.23÷0.45; 1.36÷0.8-12.9; 7.28+3.2÷2.5.
0.75×18÷0.15; 2.07÷0.23÷0.45; 1.36÷0.8-12.9; 7.28+3.2÷2.5.
![脱式计算:0.75×18÷0.15; 2.07÷0.23÷0.45;&nb](/uploads/image/z/2253873-57-3.jpg?t=%E8%84%B1%E5%BC%8F%E8%AE%A1%E7%AE%97%EF%BC%9A0.75%C3%9718%C3%B70.15%EF%BC%9B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B2.07%C3%B70.23%C3%B70.45%EF%BC%9B%26nb)
(1)0.75×18÷0.15
=13.5÷0.15
=90;
(2)2.07÷0.23÷0.45
=9÷0.45
=20;
(3)1.36÷0.8-12.9
=1.7-12.9
=-11.2;
(4)7.28+3.2÷2.5
=7.28+1.28
=8.56.
=13.5÷0.15
=90;
(2)2.07÷0.23÷0.45
=9÷0.45
=20;
(3)1.36÷0.8-12.9
=1.7-12.9
=-11.2;
(4)7.28+3.2÷2.5
=7.28+1.28
=8.56.