| 7.8×0.1= | 6.4÷0.2= | 1.25×0.8= | 35÷4= | 0.21÷0.3= | 7×0.9= |
| 0.36÷0.09= | 1.2×0.5= | 3.5×20= | 4.3÷10= | 0.8×0.7= | 32÷0.8= |
| 解：7.8×0.1=0.78 | 6.4÷0.2=32 | 1.25×0.8=1 | 35÷4=8.75 | 0.21÷0.3=0.7 | 7×0.9=6.3 |
| 0.36÷0.09=4 | 1.2×0.5=0.6 | 3.5×20=70 | 4.3÷10=0.43 | 0.8×0.7=0.56 | 32÷0.8=40 |
分析：根据小数乘除法的计算法则进行计算．
点评：本题主要考查了学生小数乘除法的计算能力，注意计算要细心．