× = | 1÷ = | ÷60%= | ×15= |
- = | 4.5+ = | × = | 6.8÷10%= |
× = , | 1÷ = , | ÷60%= , | ×15= , |
- = , | 4.5+ =5, | × = , | 6.8÷10%=68. |
,
,
,
,
,5,
,68.分析: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:除以一个数等于乘这个数的倒数.
点评:本题考查了简单的分数计算,计算时要细心,把结果化成最简分数.
编辑:chaxungu时间:2026-04-27 12:12:24分类:小学数学题库
× = | 1÷ = | ÷60%= | ×15= |
- = | 4.5+ = | × = | 6.8÷10%= |
× = , | 1÷ = , | ÷60%= , | ×15= , |
- = , | 4.5+ =5, | × = , | 6.8÷10%=68. |
,
,
,
,
,5,
,68.