A

1. 48 ÷ 6 = 8
48
6 6 6 6 6 6 6 6
0 6 12 18 24 30 36 42
6-6 12-6 18-6 24-6 30-6 36-6 42-6 48-6
How many 6’s have been subtracted?
That means, there are 8 sixes in 48!

2. 42 ÷ 7 = 6
42
7 7 7 7 7 7
0 7 14 21 28 35
7-7 14-7 21-7 28-7 35-7 42-7
How many 7’s have been subtracted?
That means, there are 6 sevens in 42!

3. 63 ÷ 9 = 7
63
9 9 9 9 9 9 9
0 9 18 27 36 45 54
9-9 18-9 27-9 36-9 45-9 54-9 63-9
How many 9’s have been subtracted?
That means, there are 7 nines in 63!