| 1.6×12.5= | = | = | 3.9×10%= | = |
= | = | = | = | 25÷25%= |
| 1.6×12.5=20, | =1, | = , | 3.9×10%=0.39, | = , |
= , | =0.62, | = , | = , | 25÷25%=100. |
分析:根据小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:2026-04-27 08:24:41分类:小学数学题库
| 1.6×12.5= | = | = | 3.9×10%= | = |
= | = | = | = | 25÷25%= |
| 1.6×12.5=20, | =1, | = , | 3.9×10%=0.39, | = , |
= , | =0.62, | = , | = , | 25÷25%=100. |