1.
Count backwards by 5s: 25, 20, 15, 10, ___, 0
2.
Count backwards by 6s: 48, 42, 36, ___, 24, 18
3.
Count backwards by 4s: 32, 28, 24, ___, 16, 12
4.
Count backwards by 6s: 30, 24, ___, 12, 6, 0
5.
Count backwards by 6s: 42, 36, 30, ___, 18, 12
6.
Count backwards by 6s: 54, ___, 42, 36, 30, 24
7.
Count backwards by 5s: 30, 25, 20, ___, 10, 5
8.
Count backwards by 4s: 24, 20, 16, 12, ___, 4
9.
Count backwards by 6s: 36, 30, 24, ___, 12, 6
10.
Count backwards by 4s: 28, 24, 20, 16, ___, 8
11.
Count backwards by 5s: 45, 40, 35, 30, ___, 20
12.
Count backwards by 5s: 45, 40, 35, 30, ___, 20
13.
Count backwards by 5s: 30, 25, 20, ___, 10, 5
14.
Count backwards by 6s: 30, 24, 18, ___, 6, 0
15.
Count backwards by 6s: 30, ___, 18, 12, 6, 0
16.
Count backwards by 6s: 54, 48, 42, ___, 30, 24
17.
Count backwards by 4s: 24, ___, 16, 12, 8, 4
18.
Count backwards by 6s: 42, 36, ___, 24, 18, 12
19.
Count backwards by 5s: 25, 20, ___, 10, 5, 0
20.
Count backwards by 6s: 42, 36, 30, ___, 18, 12