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: 2, 4, 6, 8, 10.
Counting by 2s, add 2 to 6 to get 8.
2. Count by 2s: 10, 12, 14, 16, 18.
Counting by 2s, add 2 to 12 to get 14.
3. Count by 5s: 5, 10, 15, 20, 25.
Counting by 5s, add 5 to 15 to get 20.
4. Count by 5s: 25, 30, 35, 40, 45.
Counting by 5s, add 5 to 30 to get 35.
5. Count by 10s: 10, 20, 30, 40, 50.
Counting by 10s, add 10 to 20 to get 30.
6. Count by 10s: 50, 60, 70, 80, 90.
Counting by 10s, add 10 to 70 to get 80.
7. Count by 2s: 14, 16, 18, 20, 22.
Counting by 2s, add 2 to 18 to get 20.
8. Count by 5s: 35, 40, 45, 50, 55.
Counting by 5s, add 5 to 45 to get 50.
Part B: True or False?
Circle True or False for each statement.
1. When counting by 2s, you say the number 9.
True False
False — when counting by 2s, you say 2, 4, 6, 8, 10, not 9. Only even numbers appear in the count.
2. 50 comes when counting by 10s.
True False
True — 50 is in the 10s count: 10, 20, 30, 40, 50.
3. When counting by 5s, you say 15.
True False
True — 15 is in the 5s count: 5, 10, 15, 20, 25.
4. The number 14 comes when counting by 2s.
True False
True — 14 is in the 2s count: 2, 4, 6, 8, 10, 12, 14.
5. When counting by 10s, you say 35.
True False
False — when counting by 10s, you say 10, 20, 30, 40, not 35. The number 35 is not a multiple of 10.