题目内容
| 3+4= | 5+8= | 0+8= | 9-1= |
| 10-8= | 6-4= | 5-5= | 9-4= |
| 8+8= | 8+7= | 7+7= | 6+9= |
| 3+8= | 5+6= | 9+9= | 15-0= |
| 4+13= | 14-4= | 12+6= | 19-10= |
| 6-3+7= | 19-6-2= | 17-5+3= |
分析:根据20以内加减法计算的方法求解.
解答:解:
| 3+4=7, | 5+8=13, | 0+8=8, | 9-1=8, |
| 10-8=2, | 6-4=2, | 5-5=0, | 9-4=5, |
| 8+8=16, | 8+7=15, | 7+7=14, | 6+9=15, |
| 3+8=11, | 5+6=11, | 9+9=18, | 15-0=15, |
| 4+13=17, | 14-4=10, | 12+6=18, | 19-10=9, |
| 6-3+7=10, | 19-6-2=11, | 17-5+3=15. |
点评:本题考查了简单的口算,计算时要细心.
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