+ = | + = | 2+ = | 2.5×4= | 1- = | 36÷0.9= |
+ = | + = | + = | 5÷0.001= | 13×60= | 0.8÷0.02= |
解: + =1, | + =1, | 2+ =2 , | 2.5×4=10, | 1- = , | 36÷0.9=40, |
+ = , | + = , | + = , | 5÷0.001=5000, | 13×60=780, | 0.8÷0.02=40. |
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,然后再进一步计算即可.
编辑:chaxungu时间:2026-04-26 09:11:11分类:小学数学题库
+ = | + = | 2+ = | 2.5×4= | 1- = | 36÷0.9= |
+ = | + = | + = | 5÷0.001= | 13×60= | 0.8÷0.02= |
解: + =1, | + =1, | 2+ =2 , | 2.5×4=10, | 1- = , | 36÷0.9=40, |
+ = , | + = , | + = , | 5÷0.001=5000, | 13×60=780, | 0.8÷0.02=40. |