| 26+57= | 53-35= | 200-87= | 6000+400= | + = |
| 18×5= | 66÷3= | 60×5= | 7500-800= | - = |
| 80÷4= | 500×2= | 35-0= | 48×0= | - = |
| 26+57=83, | 53-35=18, | 200-87=113, | 6000+400=6400, | + =1, |
| 18×5=90, | 66÷3=22, | 60×5=300, | 7500-800=6700, | - = , |
| 80÷4=20, | 500×2=1000, | 35-0=35, | 48×0=0, | - = . |
分析:根据整数和分数加减乘除法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.
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