subtraction 20-19 Flashcards
1
Q
20-1=
A
19
2
Q
20-2=
A
18
3
Q
20-3=
A
17
4
Q
20-4=
A
16
5
Q
20-5=
A
15
6
Q
20-6=
A
14
7
Q
20-7=
A
13
8
Q
20-8=
A
12
9
Q
20-9=
A
11
10
Q
20-10=
A
10
11
Q
20-11=
A
9
12
Q
20-12=
A
8
13
Q
20-13=
A
7
14
Q
20-14=
A
6
15
Q
20-15=
A
5
16
Q
20-16=
A
4
