题目内容
【题目】口算
99×0.25= | 0.2×0.04= | 0.24÷0.3= | 0.45÷0.5= |
8÷5= | 2.7×2= | 3.6÷0.01= | 0.12+0.8= |
0.8×1.25= | 7÷0.25= | 0.4×0.02= | 3.5+7.6= |
1.23÷3= | 2.4×2.5= | 16÷1.6= | 0.9÷0.01= |
【答案】
99×0.25=24.75 | 0.2×0.04=0.008 | 0.24÷0.3=0.8 | 0.45÷0.5=0.9 |
8÷5=1.6 | 2.7×2=5.4 | 3.6÷0.01=360 | 0.12+0.8=0.92 |
0.8×1.25=1 | 7÷0.25=28 | 0.4×0.02=0.008 | 3.5+7.6=11.1 |
1.23÷3=0.41 | 2.4×2.5=6 | 16÷1.6=10 | 0.9÷0.01=90 |
【解析】
试题分析：根据整数、小数加法、乘法和除法的计算法则，直接进行口算即可．
解答：解：
99×0.25=24.75 | 0.2×0.04=0.008 | 0.24÷0.3=0.8 | 0.45÷0.5=0.9 |
8÷5=1.6 | 2.7×2=5.4 | 3.6÷0.01=360 | 0.12+0.8=0.92 |
0.8×1.25=1 | 7÷0.25=28 | 0.4×0.02=0.008 | 3.5+7.6=11.1 |
1.23÷3=0.41 | 2.4×2.5=6 | 16÷1.6=10 | 0.9÷0.01=90 |
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