subtraction
5-3
2
35
+24
59
Count by 10's to 50
10, 20, 30, 40, 50
5+5
10
99-10
89
29+13
42
Count by 5's to 25
5, 10, 15, 20, 25
2+2
4
56-5
51
36+23
59
Count by 2's to 20
7+7
14
36-6
30
54+25
79
Count by 10's to 100
10, 20, 30, 40, 50, 60, 70, 80, 90, 100
8+8
16
44-12
32
125+24
149
Count by 5's to 100
5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100
10+10
20