| 24.06+0.4= | - = | + = | + - + = |
÷6= | 5- + = | ×25= | 12.5×32×2.5= |
| 24.06+0.4=24.46, | - = , | + = , | + - + = , |
÷6= , | 5- + =5 , | ×25=20, | 12.5×32×2.5=1000. |
分析:根据小数和分数加减乘除的计算方法进行计算即可.
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根据加法交换律和结合律进行简算;12.5×32×2.5根据乘法乘法交换律和结合律进行简算.
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 09:20:50分类:小学数学题库
| 24.06+0.4= | - = | + = | + - + = |
÷6= | 5- + = | ×25= | 12.5×32×2.5= |
| 24.06+0.4=24.46, | - = , | + = , | + - + = , |
÷6= , | 5- + =5 , | ×25=20, | 12.5×32×2.5=1000. |
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根据加法交换律和结合律进行简算;