题目内容
| 3.5×0.4= | 2.5×0.4= | 2.3×0.2= | 2.1÷0.3= |
| 7.1×0.4= | 4.5÷0.15= | 1-0.07= | 0.42÷0.7= |
| 12.4÷4= | 2.5+1.5= | 5.9×0.2= | 0.48÷0.8= |
| 0.25×1.3×4= | 20÷0.01= | 9÷0.01= | 5.5÷1.1= |
| 4.79+15.81= | 0.3÷0.03= | 0.2×0.1= | 3.6+6.4= |
| 0.56÷0.28= | 1.2×0.3= | 6.7-5.6= | 7.25÷0.5= |
| 4.2÷0.21= | 4.3×0= | 0.15÷0.5= | 3.5×4= |
| 5.32-5.3= | 1.25×3.4×8= | 9.6÷3.2= | 3.6+2.4= |
| 4.3-2.7+5.7= | 7.2-5.6= | 1.8÷0.9= | 8.2×0.5= |
| 5.6÷0.4= | 8.5÷5= | 5.6×0.5= | 9.8÷0.2= |
| 3.56×0.2= | 3.4+1.5+4.6= | 3.4×0.04= | 6.12+3.48= |
| 6÷0.12= | 7.6÷4= | 3.4×0.5= | 5.2-3.2-1.8= |
| 6-3.8= | 7.5÷3= | 3.5+5.4= | 3×2.5= |
| 3.5+6.5= | 7-6.23= | 8÷0.4= | 0.25×2.5= |
| 7.5÷0.5= | 0.89-0.48= | 3.5×0.8= | 5.9-（3.2+0.9）= |
分析：按照计算顺序和计算法则直接进行计算即可．
解答：
| 解：3.5×0.4=1.4 | 2.5×0.4=1 | 2.3×0.2=0.46 | 2.1÷0.3=7 |
| 7.1×0.4=2.84 | 4.5÷0.15=30 | 1-0.07=0.93 | 0.42÷0.7=0.6 |
| 12.4÷4=3.1 | 2.5+1.5=4 | 5.9×0.2=1.18 | 0.48÷0.8=0.6 |
| 0.25×1.3×4=1.3 | 20÷0.01=2000 | 9÷0.01=900 | 5.5÷1.1=5 |
| 4.79+15.81=20.6 | 0.3÷0.03=10 | 0.2×0.1=0.02 | 3.6+6.4=10 |
| 0.56÷0.28=2 | 1.2×0.3=0.36 | 6.7-5.6=1.1 | 7.25÷0.5=14.5 |
| 4.2÷0.21=20 | 4.3×0=0 | 0.15÷0.5=0.3 | 3.5×4=14 |
| 5.32-5.3=0.02 | 1.25×3.4×8=34 | 9.6÷3.2=3 | 3.6+2.4=6 |
| 4.3-2.7+5.7=7.3 | 7.2-5.6=1.6 | 1.8÷0.9=2 | 8.2×0.5=4.1 |
| 5.6÷0.4=14 | 8.5÷5=1.7 | 5.6×0.5=2.8 | 9.8÷0.2=49 |
| 3.56×0.2=0.712 | 3.4+1.5+4.6=9.5 | 3.4×0.04=0.136 | 6.12+3.48=9.6 |
| 6÷0.12=50 | 7.6÷4=1.9 | 3.4×0.5=1.7 | 5.2-3.2-1.8=0.2 |
| 6-3.8=2.2 | 7.5÷3=2.5 | 3.5+5.4=8.9 | 3×2.5=7.5 |
| 3.5+6.5=10 | 7-6.23=0.77 | 8÷0.4=20 | 0.25×2.5=0.625 |
| 7.5÷0.5=15 | 0.89-0.48=0.41 | 3.5×0.8=2.8 | 5.9-（3.2+0.9）=1.8 |
点评：此题考查学生的计算能力，计算时要细心．
练习册系列答案
阅读快车系列答案
相关题目