6+8= 7+5= 7+8=
4+7= 6+9= 9+9=
10+7= 8-8= 5+8=
8+3= 16-6= 5+6=
=(个)
7+( )=14 9+( )=16
( )+7=11 ( )+8=11
9+5____15 7+8____6+8
5+9____9+5 12____7+6
5+7____14 15____6+5