= | = | = | 1 = | 1.2× = | 1 = |
6 = | = | 3 = | 0.9- = | 0.75+ = | 24× = |
解: =1 ; | = ; | =1 ; | 1 =1; | 1.2× =0.8; | 1 =2 ; |
6 =5 ; | =25 ; | 3 = ; | 0.9- =0.8; | 0.75+ =1 ; | 24× =7 . |
分析:根据分数、小数四则加、减、乘、除法的计算法则,直接进行口算即可.
点评:此题考查的目的是理解掌握分数、小数四则运算的计算法则,并且能够正确熟练地进行口算,提高口算能力.
编辑:chaxungu时间:2026-04-26 09:43:57分类:小学数学题库
= | = | = | 1 = | 1.2× = | 1 = |
6 = | = | 3 = | 0.9- = | 0.75+ = | 24× = |
解: =1 ; | = ; | =1 ; | 1 =1; | 1.2× =0.8; | 1 =2 ; |
6 =5 ; | =25 ; | 3 = ; | 0.9- =0.8; | 0.75+ =1 ; | 24× =7 . |