Okay so you want to split 42 cards into 6 groups
1.5____ 2.5___ 3.5__ 4.5___ 5.5 __6.5
=30
We want to subtract 30 from 42 to see what we have left to divide
42-30=12
What number can go into 6 and equal 12
2
So we want to add 3 + 5 to get are answer
=8
Your answer will be= 8