| 6.3+3.7= | 9-1.8= | 1.4×0.5= | 3.9-0.39= | 0.49÷0.7= | 1.53+0.8= |
| 9.2×0.01= | 0.25×12= | 0.51÷0.3= | 70÷0.5= | 1.8×8= | 0.75×4= |
| 6.3+3.7=10 | 9-1.8=7.2 | 1.4×0.5=0.7 | 3.9-0.39=3.51 | 0.49÷0.7=0.7 | 1.53+0.8=2.33 |
| 9.2×0.01=0.092 | 0.25×12=3 | 0.51÷0.3=1.7 | 70÷0.5=140 | 1.8×8=14.4 | 0.75×4=3 |
分析：根据小数的加减乘除的计算法测进行计算即可．
点评：此题考查了学生小数的口算能力．