Skip Counting
Skip Count by 2
2,4,6,8,10...
2,3,5
2 + 3 = 5
3 + 2 = 5
5 - 2 = 3
5 - 3 = 2
8 + 10 = ?
18
Double of 4
8
Skip Count by 5
5,10,15,20...
1, 2, 3
1 + 2 = 3
2 + 1 = 3
3 - 2 = 1
3 - 1 = 2
12 + 20 = ?
32
Double of 6
12
Skip Count by 10
10,20,30,40,50...
2, 4, 6
2 + 4 = 6
4 + 2 = 6
6 - 2 = 4
6 - 4 = 2
62 + 21 = ?
83
Double of 7
14
Skip Count by 20
20,40,60,80,100
6, 4, 10
6 + 4 = 10
4 + 6 = 10
10 - 6 = 4
10 - 4 = 6
22 + 39 = ?
61
Double of 8
16
Skip Count by 25
25,50,75,100
7 + 2 = 9
2 + 7 = 9
9 - 7 = 2
9 - 2 = 7
50 + 33 = ?
83
Double of 9
18