Advertisement

SUBTRACTION Self-Correcting Quiz - Up Through the TWOS

1
2
-  1
2
6
-  2
3
2
-  2
4
7
-  1
5
4
-  1
6
9
-  0
7
10
-  2
8
4
-  2
9
9
-  2
10
6
-  1
11
1
-  1
12
7
-  2
13
10
-  1
14
9
-  1
15
5
-  2
16
5
-  1
17
11
-  2
18
8
-  2
19
3
-  1
20
8
-  1
Advertisement