+ + +![]() | - +![]() | 3- -![]() |
-( + ) | 5-(0.5- ) | + - - . |
+ + + =3, | - + = , | 3- - =1, |
-( + )= , | 5-(0.5- )=4.8, | + - - =0. |
分析:根据分数和小数加减乘除的计算方法进行计算即可.
点评:口算时,注意运算符号和数据,然后再进一步解答即可.
编辑:chaxungu时间:2026-04-26 09:26:37分类:小学数学题库
+ + +![]() | - +![]() | 3- -![]() |
-( + ) | 5-(0.5- ) | + - - . |
+ + + =3, | - + = , | 3- - =1, |
-( + )= , | 5-(0.5- )=4.8, | + - - =0. |