6-5=  6-6= 5-1=  5-2=

5-3=  10-6=  10-8=  2+( 7)=

9=7+()  3+(7 )=  3+4=  5+4=

3+( )= 8  7+( )=9  9=3+( )  8-3=

5-3=  0+8=  10-7=  2+4=

6-5=  4+4=  5-1=  1+9=

6+5+3=  7+2+1=  1+3+5=

4+5+2=  8-2+1=  9-5+5=

9-9+5=  8-6+3=  5+5+3=

6+7-3=  9-9+9=  5+5-5=

10-5-3=  7+3-8=  3+5-4=

6+5-3=  12+3-8=  6+8-4=