| 36+21= | 40+60= | 8+88= | 55+10= | 25+8= |
| 55-49= | 40+39= | 100-30= | 56+43= | 78-27= |
| 25+41= | 97-76= | 38+16= | 45+20= | 96-86= |
| 7+59= | 52+20-8= | 74-28-9= | 42+11-6= | 90-34-20= |
| 36+21=37, | 40+60=100, | 8+88=96, | 55+10=65, | 25+8=33, |
| 55-49=6, | 40+39=79, | 100-30=70, | 56+43=99, | 78-27=51, |
| 25+41=66, | 97-76=21, | 38+16=54, | 45+20=65, | 96-86=10, |
| 7+59=66, | 52+20-8=64, | 74-28-9=37, | 42+11-6=47, | 90-34-20=36. |
分析:根据整数加减法的计算方法进行计算即可.
点评:口算时,注意运算符号和数据,然后再进一步计算即可.