1.
Count backwards by 4s: 24, 20, 16, ___, 8, 4
2.
Count backwards by 6s: 42, 36, 30, 24, ___, 12
3.
Count backwards by 4s: 32, 28, ___, 20, 16, 12
4.
Count backwards by 5s: 40, ___, 30, 25, 20, 15
5.
Count backwards by 5s: 40, 35, 30, ___, 20, 15
6.
Count backwards by 6s: 42, 36, 30, ___, 18, 12
7.
Count backwards by 4s: 20, 16, ___, 8, 4, 0
8.
Count backwards by 4s: 24, 20, 16, ___, 8, 4
9.
Count backwards by 4s: 36, 32, ___, 24, 20, 16
10.
Count backwards by 6s: 42, ___, 30, 24, 18, 12
11.
Count backwards by 5s: 45, 40, 35, ___, 25, 20
12.
Count backwards by 6s: 48, 42, 36, 30, ___, 18
13.
Count backwards by 4s: 32, 28, 24, ___, 16, 12
14.
Count backwards by 6s: 42, ___, 30, 24, 18, 12
15.
Count backwards by 5s: 30, 25, 20, ___, 10, 5
16.
Count backwards by 5s: 25, 20, 15, 10, ___, 0
17.
Count backwards by 6s: 42, 36, 30, 24, ___, 12
18.
Count backwards by 5s: 25, 20, 15, ___, 5, 0
19.
Count backwards by 5s: 25, 20, 15, 10, ___, 0
20.
Count backwards by 5s: 25, ___, 15, 10, 5, 0