1+ = | 2- = | - = | 1.2×0.01= |
- - = | ÷ = | 6× = | × = |
÷6= | 3÷4+ = |
1+ =1 , | 2- =1 , | - = , | 1.2×0.01=0.012, |
- - = , | ÷ = , | 6× =4, | × = , |
÷6= , | 3÷4+ =1. |
分析:根据分数的加减乘除与小数的乘法进行计算即可;
-
-
=
-(
+
)可以进行简算.点评:口算时,看清数据和运算符号再进行计算,能简算的要简算.
编辑:chaxungu时间:2026-04-26 09:21:52分类:小学数学题库
1+ = | 2- = | - = | 1.2×0.01= |
- - = | ÷ = | 6× = | × = |
÷6= | 3÷4+ = |
1+ =1 , | 2- =1 , | - = , | 1.2×0.01=0.012, |
- - = , | ÷ = , | 6× =4, | × = , |
÷6= , | 3÷4+ =1. |
-
-
=
-(
+
)可以进行简算.