From what you have posted, I don't get it either.
10 = 9 + 1 = 8 + 2 = 7 +3 = ....?
I don't get make a ten.
9+6=
then 2 lines come out of the 6
the next line says
10+ _ =_
1 answer
9+6=
then 2 lines come out of the 6
the next line says
10+ _ =_
1 answer
2 answers
1 answer
11 answers
5 answers