| 3.8+0.2= | 40×80= | 2700÷3= | 1-0.1= |
+ = | 1- = | - = | + = |
| 3.8+0.2=4, | 40×80=3200, | 2700÷3=900, | 1-0.1=0.9, |
+ = , | 1- = , | - = , | + =1. |
分析:根据小数、整数和分数加减乘除的计算方法进行计算即可.
点评:口算时,注意运算符号和数据,然后再进一步计算即可.
编辑:chaxungu时间:2026-04-26 09:30:04分类:小学数学题库
| 3.8+0.2= | 40×80= | 2700÷3= | 1-0.1= |
+ = | 1- = | - = | + = |
| 3.8+0.2=4, | 40×80=3200, | 2700÷3=900, | 1-0.1=0.9, |
+ = , | 1- = , | - = , | + =1. |