× = | + = | ÷ = | 1- = |
÷3= | 8×25%= | ÷ = | -20%= |
× = ; | + = ; | ÷ = ; | 1- = ; |
÷3= ; | 8×25%=2; | ÷ = ; | -20%= . |
,
,
,
,
,2,
,
.分析:根据分数加、减、乘、除法的计算法则,直接进行口算.
点评:此题考查的目的是牢固掌握分数加、减、乘、除法的计算法则,并且能够正确熟练地进行口算,提高口算能力.
编辑:chaxungu时间:2026-04-27 08:26:43分类:小学数学题库
× = | + = | ÷ = | 1- = |
÷3= | 8×25%= | ÷ = | -20%= |
× = ; | + = ; | ÷ = ; | 1- = ; |
÷3= ; | 8×25%=2; | ÷ = ; | -20%= . |
,
,
,
,
,2,
,
.