1 digit subtraction
15-8
7
9+7
16
14+11
25
Count by 3's. Start at 3 and end on 30.
3,6,9,12,15,18,21,24,27,30
30-11
19
15-9
6
8+4
12
22+33
55
Count by 5's to 120
5,10,15,20,25,30,35,40,45,50,55,60,65,70,75,80,85,90,95,100, 105, 110, 115, 120
49-33=
16
14-9
5
16+8=
24
29+31
60
Count by 10's to 120
10,20,30,40,50,60,70,80,90,100,110,120
24-13
11
17-9
8
11+8
19
32+47
79
Counting by 2's to 60
2,4,6,8,10,12,14,16,18,20,22,24,26,28,30,32,34,36,38,40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60
40-30
10
11-6
5
9+6
15
16+19
35
Counting by 2's to 80
2,4,6,8,10,12,14,16,18,20,22,24,26,28,30,32,34,36,38,40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62,64,66,68,70,72,74,76,78,80
27-9
18