Skip Counting — Answer Key
Part A: Sort the Words
Sort each word or number into the correct category box.
1. Sort each number into the correct skip-counting group.
Counting by 2s
4812 Counting by 5s
152535 Counting by 2s means each number is 2 more than the one before it. Counting by 5s means each number is 5 more than the one before it.
Part B: Fill in the Blank
Write the missing word or number on each line.
1. 2, 4, 6, 8, 10.
This sequence counts by 2s. The next number after 8 is 8 + 2 = 10.
2. 5, 10, 15, 20, 25.
This sequence counts by 5s. The next number after 20 is 20 + 5 = 25.
3. 14, 16, 18, 20, 22.
This sequence counts by 2s. The missing number between 18 and 22 is 18 + 2 = 20.
4. 30, 35, 40, 45, 50.
This sequence counts by 5s. The missing number between 40 and 50 is 40 + 5 = 45.
5. 22, 24, 26, 28, 30.
This sequence counts by 2s. The missing number between 24 and 28 is 24 + 2 = 26.
Part C: True or False?
Read each statement. Circle True or False.
1. 10, 12, 14, 16 is counting by 2s.
True False
Each number is 2 more than the one before it: 10 + 2 = 12, 12 + 2 = 14, 14 + 2 = 16.
2. 5, 10, 20, 25 is counting by 5s.
True False
This sequence is missing 15. Counting by 5s from 5 should be 5, 10, 15, 20, 25.
3. 6, 8, 10, 12 is counting by 2s.
True False
Each number is 2 more than the one before it: 6 + 2 = 8, 8 + 2 = 10, 10 + 2 = 12.
4. 15, 20, 30, 35 is counting by 5s.
True False
This sequence is missing 25. Counting by 5s from 15 should be 15, 20, 25, 30, 35.