1. (2020一上·长葛期中) 直接写出得数。

5+3=            6-4=            8-3=            2+5=

4-3=            6+3=            2-0=            4+1=

6+2=            7-6=            1+8=            9-6=

4-2=            6+1=            8-7=            4-4=