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? 17, 27, 37, 47, ____
2. What comes next? 11, 22, 33, 44, ____
3. What comes next? 15, 25, 35, 45, ____
4. What comes next? 16, 30, 44, 58, ____
5. What comes next? 5, 19, 33, 47, ____
6. What comes next? 4, 16, 28, 40, ____
7. What comes next? 20, 34, 48, 62, ____
8. What comes next? 15, 28, 41, 54, ____
9. What comes next? 2, 15, 28, 41, ____
10. What comes next? 18, 31, 44, 57, ____
11. What comes next? 19, 25, 31, 37, ____
12. What comes next? 6, 17, 28, 39, ____

12 questions · Seed 89 · 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? 17, 27, 37, 47, ____
57
Add 10 each time.
2. What comes next? 11, 22, 33, 44, ____
55
Add 11 each time.
3. What comes next? 15, 25, 35, 45, ____
55
Add 10 each time.
4. What comes next? 16, 30, 44, 58, ____
72
Add 14 each time.
5. What comes next? 5, 19, 33, 47, ____
61
Add 14 each time.
6. What comes next? 4, 16, 28, 40, ____
52
Add 12 each time.
7. What comes next? 20, 34, 48, 62, ____
76
Add 14 each time.
8. What comes next? 15, 28, 41, 54, ____
67
Add 13 each time.
9. What comes next? 2, 15, 28, 41, ____
54
Add 13 each time.
10. What comes next? 18, 31, 44, 57, ____
70
Add 13 each time.
11. What comes next? 19, 25, 31, 37, ____
43
Add 6 each time.
12. What comes next? 6, 17, 28, 39, ____
50
Add 11 each time.

12 questions · Seed 89 · Age guidance, not curriculum certification

Worksheet StudioPractice pack · Ages 10-12

Number patterns

Take your time. Show your thinking.

1. What comes next? 17, 27, 37, 47, ____
2. What comes next? 11, 22, 33, 44, ____
3. What comes next? 15, 25, 35, 45, ____
4. What comes next? 16, 30, 44, 58, ____
5. What comes next? 5, 19, 33, 47, ____
6. What comes next? 4, 16, 28, 40, ____
7. What comes next? 20, 34, 48, 62, ____
8. What comes next? 15, 28, 41, 54, ____
9. What comes next? 2, 15, 28, 41, ____
10. What comes next? 18, 31, 44, 57, ____
11. What comes next? 19, 25, 31, 37, ____
12. What comes next? 6, 17, 28, 39, ____

12 questions · Seed 89 · Age guidance, not curriculum certification

Worksheet StudioAnswer key · Ages 10-12

Number patterns

Answers and reasoning. Review before teaching.

1. What comes next? 17, 27, 37, 47, ____
57
Add 10 each time.
2. What comes next? 11, 22, 33, 44, ____
55
Add 11 each time.
3. What comes next? 15, 25, 35, 45, ____
55
Add 10 each time.
4. What comes next? 16, 30, 44, 58, ____
72
Add 14 each time.
5. What comes next? 5, 19, 33, 47, ____
61
Add 14 each time.
6. What comes next? 4, 16, 28, 40, ____
52
Add 12 each time.
7. What comes next? 20, 34, 48, 62, ____
76
Add 14 each time.
8. What comes next? 15, 28, 41, 54, ____
67
Add 13 each time.
9. What comes next? 2, 15, 28, 41, ____
54
Add 13 each time.
10. What comes next? 18, 31, 44, 57, ____
70
Add 13 each time.
11. What comes next? 19, 25, 31, 37, ____
43
Add 6 each time.
12. What comes next? 6, 17, 28, 39, ____
50
Add 11 each time.

12 questions · Seed 89 · Age guidance, not curriculum certification