| 2.25+3.2= | = | = | 5×20%= |
= | = | = | = |
| 2.25+3.2=5.45, | = , | =0.6, | 5×20%=1, |
= , | = , | = , | =0. |
分析:根据小数和分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 09:27:05分类:小学数学题库
| 2.25+3.2= | = | = | 5×20%= |
= | = | = | = |
| 2.25+3.2=5.45, | = , | =0.6, | 5×20%=1, |
= , | = , | = , | =0. |