(1) Subtracting 0, 1 or everything. Flashcards
1
Q
6 -1 =
A
5
1
Q
3 - 0 =
A
3
2
Q
1 - 1=
A
0
3
Q
5 - 0 =
A
5
5
Q
7 -7 =
A
0
6
Q
9 -1 =
A
8
7
Q
4 -1 =
A
3
7
Q
2 -1 =
A
1
8
Q
6 - 0 =
A
6
10
Q
9 - 9 =
A
0
10
Q
5 -5 =
A
0
10
Q
4 -4 =
A
0
11
Q
7 -1 =
A
6
12
Q
8 - 0 =
A
8
13
Q
2 -2 =
A
0
