| 直接写出得数. 9.56+1.34= | = | 1- = | = | 1÷0.25%= |
= | = | = | 1 = | 2.3÷0.3= |
| 解:9.56+1.34=10.9, | = , | 1- = , | =6, | 1÷0.25%=400, |
= , | = , | = , | 1 = , | 2.3÷0.3= . |
分析:1÷0.25%先把百分数化成小数再计算,注意小数的位数;2.3÷0.3把被除数和除数同时扩大10倍,然后用分数表示运算的结果;其它题目根据运算法则直接求解.
点评:本题考查了基本的计算,计算时要细心,注意把结果化成最简分数.
编辑:chaxungu时间:2026-04-27 09:35:23分类:小学数学题库
| 直接写出得数. 9.56+1.34= | = | 1- = | = | 1÷0.25%= |
= | = | = | 1 = | 2.3÷0.3= |
| 解:9.56+1.34=10.9, | = , | 1- = , | =6, | 1÷0.25%=400, |
= , | = , | = , | 1 = , | 2.3÷0.3= . |
上一篇:建造一栋楼房.实际投资是计划的125%.实际投资超过计划的 %.
下一篇:返回列表