Mental Math Basics > Addition > Flashcards
1+1
2
1+2
3
2+1
1+3
4
3+1
1+4
5
4+1
5+1
6
1+5
1+6
7
6+1
1+7
8
7+1
1+8
9
8+1
1+9
10
9+1
2+2
2+3
3+2
2+4
4+2
2+5
5+2