Maths facts > Double plus 1 > Flashcards
1 + 2 =
1 + 2 = 3
2 + 3 =
2 + 3 = 5
3 + 4 =
3 + 4 = 7
4 + 5 =
3 + 4 = 9
5 + 6 =
5 + 6 = 11
6 + 7 =
6 + 7 = 13
7 + 8 =
7 + 8 = 15
8 + 9 =
8 + 9 = 17
9 + 10 =
9 + 10 = 19
10 + 11 =
10 + 11 = 21
11 + 12 =
11 + 12 = 23
12 + 13 =
12 + 13 = 25