题目内容
| 37-21= | 850÷100= | ||
| 12×5= | 4.4×1.1= | ||
| 36÷3= | 3-2.55= | ||
| 210×10= | |||
| 0.95=________% | 9.5-8.7= | ||
| 0÷ | 1.12=________% | 0.6+0.13= | |
| 2× | 0.4×0.9= | ||
| 2.4÷0.3= | |||
| 75%= | 1.2-1.16= | ||
| 9÷8= | 15%= |
95 112 40 22
分析:根据整数、分数、小数和百分数加减乘除的计算方法进行计算.
解答:
点评:口算时,注意运算符号和数据,然后再进一步计算.
分析:根据整数、分数、小数和百分数加减乘除的计算方法进行计算.
解答:
| 37-21=16, | 850÷100=8.5, | ||
| 12×5=60, | 4.4×1.1=4.84, | ||
| 36÷3=12, | 3-2.55=0.45, | ||
| 210×10=2100, | |||
| 0.95=95%, | 9.5-8.7=0.8, | ||
| 0÷ | 1.12=112%, | 0.6+0.13=0.73, | |
| 2× | 0.4×0.9=0.36, | ||
| 2.4÷0.3=8, | |||
| 75%= | 1.2-1.16=0.04, | ||
| 9÷8= | 15%= |
点评:口算时,注意运算符号和数据,然后再进一步计算.
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