× = | + = | 81÷ = | ×2= |
| 9.9÷0.1= | 3.52+6.48= | - = | 0÷ = |
÷ = | ×2÷ ×2= |
× = , | + =1, | 81÷ =63, | ×2= ; |
| 9.9÷0.1=99, | 3.52+6.48=10, | - = , | 0÷ =0; |
÷ = , | ×2÷ ×2=4. |
分析:按照分数、小数四则运算的计算方法计算出得数.
点评:本题关键是看准运算符号,再按小数、分数的加、减、乘、除法的计算方法进行计算.
编辑:chaxungu时间:2026-04-27 11:30:59分类:小学数学题库
× = | + = | 81÷ = | ×2= |
| 9.9÷0.1= | 3.52+6.48= | - = | 0÷ = |
÷ = | ×2÷ ×2= |
× = , | + =1, | 81÷ =63, | ×2= ; |
| 9.9÷0.1=99, | 3.52+6.48=10, | - = , | 0÷ =0; |
÷ = , | ×2÷ ×2=4. |
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