| 直接写出得数. 4.3×101= | = | = |
| 2.5×4= | 12.2-9.8= | 1÷9.8%= |
= | = | 1-0.92= |
= |
| 4.3×101=434.3, | = , | = , |
| 2.5×4=10, | 12.2-9.8=2.4, | 1÷9.8%= , |
= , | =0, | 1-0.92=0.08, |
= . |
分析:根据小数、分数加减乘除的计算方法进行计算.
4.3×101根据乘法分配律进行计算.
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 10:23:46分类:小学数学题库
| 直接写出得数. 4.3×101= | = | = |
| 2.5×4= | 12.2-9.8= | 1÷9.8%= |
= | = | 1-0.92= |
= |
| 4.3×101=434.3, | = , | = , |
| 2.5×4=10, | 12.2-9.8=2.4, | 1÷9.8%= , |
= , | =0, | 1-0.92=0.08, |
= . |