×8= | = | 4.5+ = | 26× = | 7- = |
×0×14= | 6× = | 5- = | ×6= | 45× = |
解: ×8=6 | =![]() | 4.5+ =5 | 26× =8 | 7- =6![]() |
×0×14=0 | 6× =5.5 | 5- =4![]() | ×6=3.75 | 45× =25 |
分析:分数乘法的计算方法:分子相乘的积作分子,分母相乘的积作分母,能约分的要先约分,
分数加减法的计算方法:先通分,再按照同分母分数加减法的计算方法进行计算.
点评:本题主要考查了学生对分数计算能力的掌握情况.
编辑:chaxungu时间:2026-04-26 08:38:42分类:小学数学题库
×8= | = | 4.5+ = | 26× = | 7- = |
×0×14= | 6× = | 5- = | ×6= | 45× = |
解: ×8=6 | =![]() | 4.5+ =5 | 26× =8 | 7- =6![]() |
×0×14=0 | 6× =5.5 | 5- =4![]() | ×6=3.75 | 45× =25 |