口算 - ÷3= | ×8÷ ×8= | 4.5×101= | 31.7-10.8= | 2÷ = |
- = | 1+0.5%= | 10.5÷5= | 3.14÷0.01= | 0.42= |
- ÷3= , | ×8÷ ×8=64, | 4.5×101=454.5, | 31.7-10.8=20.9, | 2÷ =10, |
- = , | 1+0.5%=1.005, | 10.5÷5=2.1, | 3.14÷0.01=314, | 0.42=0.16. |
分析:根据分数和小数加减乘除的计算方法进行计算.
点评:口算时,注意运算符号和数据,然后再进一步计算.
编辑:chaxungu时间:2026-04-27 11:18:46分类:小学数学题库
口算 - ÷3= | ×8÷ ×8= | 4.5×101= | 31.7-10.8= | 2÷ = |
- = | 1+0.5%= | 10.5÷5= | 3.14÷0.01= | 0.42= |
- ÷3= , | ×8÷ ×8=64, | 4.5×101=454.5, | 31.7-10.8=20.9, | 2÷ =10, |
- = , | 1+0.5%=1.005, | 10.5÷5=2.1, | 3.14÷0.01=314, | 0.42=0.16. |