Skip Counting Introduction — Answer Key
Part A: Fill in the Blank
Write the missing word or number on each line.
1. Skip count by 2s: 14, 16, 18, 20.
Counting by twos, sixteen leads to eighteen, and eighteen leads to twenty next.
2. Skip count by 5s: 10, 15, 20, 25.
Adding five to fifteen gives twenty, and twenty plus five reaches twenty-five.
3. Skip count by 10s: 20, 30, 40, 50.
Adding ten to twenty equals thirty, then thirty plus ten reaches forty correctly.
4. Skip count by 2s: 4, 6, 8, 10.
Counting by twos, eight leads to ten, the next even number we need.
5. Skip count by 5s: 20, 25, 30, 35.
Adding five to twenty makes twenty-five, then twenty-five plus five equals thirty.
6. Skip count by 10s: 60, 70, 80, 90.
Seventy plus ten equals eighty, and eighty plus ten reaches ninety cleanly.
7. Skip count by 2s: 16, 18, 20, 22.
Going up by twos from sixteen lands on eighteen, then twenty comes next.
8. Skip count by 5s: 30, 35, 40, 45.
Forty plus five equals forty-five, the next number in the fives pattern.
9. Skip count by 10s: 40, 50, 60, 70.
Fifty plus ten equals sixty, and sixty plus ten makes seventy correctly.
Part B: Matching
Match each item on the left to the correct answer on the right.
1. Match each item to its correct answer.
Count by 2s: 10, 12, 14, ?
→ 16
16
Count by 5s: 20, 25, 30, ?
→ 35
35
Count by 10s: 40, 50, 60, ?
→ 70
70
Count by 2s: 16, 18, 20, ?
→ 22
22
Each sequence keeps the same skip pattern, so we add to find the answer.