直接写结果 × = | 3× = | × = |
× = | × = | × = |
×9= | ×0= |
解: × = , | 3× = , | × = , |
× = , | × = , | × = , |
×9=1, | ×0=0. |
分析:分数乘法的计算方法:分母和分母相乘的积做分母,分子和分子相乘的积做分子,能约分的要先约分再计算.
点评:本题考查了基本的分数乘法的计算,计算时要细心,注意能约分的要先约分再计算.
编辑:chaxungu时间:2026-04-27 11:01:41分类:小学数学题库
直接写结果 × = | 3× = | × = |
× = | × = | × = |
×9= | ×0= |
解: × = , | 3× = , | × = , |
× = , | × = , | × = , |
×9=1, | ×0=0. |