Counting
Start at 10 and count backwards to 0
10, 9 , 8, 7, 6, 5, 4, 3, 2, 1, 0
8+4
12
5-3
2
1+1
2
6+__ = 10
4
Skip count by 10s to 100.
10, 20, 30, 40, 50, 60, 70, 80, 90, 100
6+0
6
10-5
5
3+3
6
1+__ = 10
9
Skip count by 5s to 50.
5, 10, 15, 20, 25, 30, 35, 40, 45, 50
15+3
18-6
12
10+10
20
5+__ = 10
5
75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85
30+20
50
40-10
30
8+8
16
3+ __ = 10
7
Count by 2s to 20.
2, 4, 6, 8, 10, 12, 14, 16, 18, 20
70+22
63-21
42
9+9
18
2+__ = 10
8