| 1÷1%= | × = | 82×10%= | ×56× = |
÷80%= | ÷ = | 6.3÷10%= | 1÷3× = |
| 1÷1%=100, | × = , | 82×10%=8.2, | ×56× =2, |
÷80%=1, | ÷ = , | 6.3÷10%=63, | 1÷3× = . |
分析:百分数先化成小数,再计算;
分数乘法:分子相乘的积做分子,分母相乘的积做分母;
分数除法?:除以一个数(0除外)等于乘这个数的倒数.
点评:口算题目,要求快速准确,能用简便方法的要用简便方法.
编辑:chaxungu时间:2026-04-27 12:13:21分类:小学数学题库
| 1÷1%= | × = | 82×10%= | ×56× = |
÷80%= | ÷ = | 6.3÷10%= | 1÷3× = |
| 1÷1%=100, | × = , | 82×10%=8.2, | ×56× =2, |
÷80%=1, | ÷ = , | 6.3÷10%=63, | 1÷3× = . |