Mental Arithmetic > Addition - 3s > Flashcards
1 + 3 =
4
2 + 3 =
5
3 + 3 =
6
4 + 3 =
7
5 + 3 =
8
6 + 3 =
9
7 + 3 =
10
8 + 3 =
11
9 + 3 =
12
10 + 3 =
13
11 + 3 =
14
12 + 3 =
15
13 + 3 =
16
14 + 3 =
17
15 + 3 =
18
16 + 3 =
19
17 + 3 =
20
18 + 3 =
21
19 + 3 =
22
20 + 3 =
23