2D-by-2D Addition & Subtraction Flashcards
1
Q
84+21
A
105
2
Q
45+42
A
87
3
Q
52+38
A
90
4
Q
43+12
A
55
5
Q
64+32
A
96
6
Q
43-12
A
31
7
Q
75-31
A
44
8
Q
87-44
A
43
9
Q
92-73
A
19
10
Q
52+11
A
63
11
Q
44+52
A
96
12
Q
73-31
A
42
13
Q
82-74
A
8
14
Q
62+12
A
74
15
Q
123-23
A
100
