Small practice. Bright discoveries.Explore the free starter collection

worksheetstudio.

Back to worksheets

ReasoningAges 10-12

Number patterns

Find the addition rule in a number sequence and use it to complete the next term. Review suitability for your learners before teaching.

New variation Try interactive challenge Browse templates

Age band:Ages 4-6 Ages 7-9 Ages 10-12

Choose “Save as PDF” to keep a copy. Use your browser’s paper setting for A4 or Letter.

Worksheet StudioPractice pack · Ages 10-12

Number patterns

Take your time. Show your thinking.

1. What comes next? 15, 21, 27, 33, ____
2. What comes next? 12, 22, 32, 42, ____
3. What comes next? 14, 27, 40, 53, ____
4. What comes next? 5, 13, 21, 29, ____
5. What comes next? 2, 10, 18, 26, ____
6. What comes next? 15, 29, 43, 57, ____
7. What comes next? 6, 10, 14, 18, ____
8. What comes next? 13, 25, 37, 49, ____
9. What comes next? 14, 26, 38, 50, ____
10. What comes next? 3, 8, 13, 18, ____
11. What comes next? 20, 25, 30, 35, ____
12. What comes next? 20, 30, 40, 50, ____

12 questions · Seed 98 · Age guidance, not curriculum certification

View the answer key

Worksheet StudioAnswer key · Ages 10-12

Number patterns

Answers and reasoning. Review before teaching.

1. What comes next? 15, 21, 27, 33, ____
39
Add 6 each time.
2. What comes next? 12, 22, 32, 42, ____
52
Add 10 each time.
3. What comes next? 14, 27, 40, 53, ____
66
Add 13 each time.
4. What comes next? 5, 13, 21, 29, ____
37
Add 8 each time.
5. What comes next? 2, 10, 18, 26, ____
34
Add 8 each time.
6. What comes next? 15, 29, 43, 57, ____
71
Add 14 each time.
7. What comes next? 6, 10, 14, 18, ____
22
Add 4 each time.
8. What comes next? 13, 25, 37, 49, ____
61
Add 12 each time.
9. What comes next? 14, 26, 38, 50, ____
62
Add 12 each time.
10. What comes next? 3, 8, 13, 18, ____
23
Add 5 each time.
11. What comes next? 20, 25, 30, 35, ____
40
Add 5 each time.
12. What comes next? 20, 30, 40, 50, ____
60
Add 10 each time.

12 questions · Seed 98 · Age guidance, not curriculum certification

Worksheet StudioPractice pack · Ages 10-12

Number patterns

Take your time. Show your thinking.

1. What comes next? 15, 21, 27, 33, ____
2. What comes next? 12, 22, 32, 42, ____
3. What comes next? 14, 27, 40, 53, ____
4. What comes next? 5, 13, 21, 29, ____
5. What comes next? 2, 10, 18, 26, ____
6. What comes next? 15, 29, 43, 57, ____
7. What comes next? 6, 10, 14, 18, ____
8. What comes next? 13, 25, 37, 49, ____
9. What comes next? 14, 26, 38, 50, ____
10. What comes next? 3, 8, 13, 18, ____
11. What comes next? 20, 25, 30, 35, ____
12. What comes next? 20, 30, 40, 50, ____

12 questions · Seed 98 · Age guidance, not curriculum certification

Worksheet StudioAnswer key · Ages 10-12

Number patterns

Answers and reasoning. Review before teaching.

1. What comes next? 15, 21, 27, 33, ____
39
Add 6 each time.
2. What comes next? 12, 22, 32, 42, ____
52
Add 10 each time.
3. What comes next? 14, 27, 40, 53, ____
66
Add 13 each time.
4. What comes next? 5, 13, 21, 29, ____
37
Add 8 each time.
5. What comes next? 2, 10, 18, 26, ____
34
Add 8 each time.
6. What comes next? 15, 29, 43, 57, ____
71
Add 14 each time.
7. What comes next? 6, 10, 14, 18, ____
22
Add 4 each time.
8. What comes next? 13, 25, 37, 49, ____
61
Add 12 each time.
9. What comes next? 14, 26, 38, 50, ____
62
Add 12 each time.
10. What comes next? 3, 8, 13, 18, ____
23
Add 5 each time.
11. What comes next? 20, 25, 30, 35, ____
40
Add 5 each time.
12. What comes next? 20, 30, 40, 50, ____
60
Add 10 each time.

12 questions · Seed 98 · Age guidance, not curriculum certification