Skip Counting by 2s, 5s, and 10s — Answer Key
Part A: Fill in the Missing Number
Write the missing number in each skip counting pattern.
1. Count by 2s: 6, 8, 10, 12, 14.
Counting by 2s, add 2 to 8 to get 10.
2. Count by 2s: 16, 18, 20, 22, 24.
Counting by 2s, add 2 to 20 to get 22.
3. Count by 5s: 10, 15, 20, 25, 30.
Counting by 5s, add 5 to 15 to get 20.
4. Count by 5s: 40, 45, 50, 55, 60.
Counting by 5s, add 5 to 50 to get 55.
5. Count by 10s: 20, 30, 40, 50, 60.
Counting by 10s, add 10 to 40 to get 50.
6. Count by 10s: 60, 70, 80, 90, 100.
Counting by 10s, add 10 to 70 to get 80.
7. Count by 2s: 8, 10, 12, 14, 16.
Counting by 2s, add 2 to 8 to get 10.
8. Count by 5s: 15, 20, 25, 30, 35.
Counting by 5s, add 5 to 30 to get 35.
Part B: True or False?
Circle True or False for each statement.
1. When counting by 5s, you say 22.
True False
False — when counting by 5s, you say 5, 10, 15, 20, 25, not 22.
2. 80 comes when counting by 10s.
True False
True — 80 is in the 10s count: 10, 20, 30, 40, 50, 60, 70, 80.
3. When counting by 2s, you say 20.
True False
True — 20 is in the 2s count because it is an even number.
4. The number 45 comes when counting by 5s.
True False
True — 45 is in the 5s count: 5, 10, 15, 20, 25, 30, 35, 40, 45.
5. When counting by 10s, you say 55.
True False
False — when counting by 10s, you say 10, 20, 30, 40, 50, 60, not 55. The number 55 is not a multiple of 10.