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? 18, 28, 38, 48, ____
2. What comes next? 1, 10, 19, 28, ____
3. What comes next? 12, 20, 28, 36, ____
4. What comes next? 2, 11, 20, 29, ____
5. What comes next? 20, 32, 44, 56, ____
6. What comes next? 20, 35, 50, 65, ____
7. What comes next? 12, 18, 24, 30, ____
8. What comes next? 18, 31, 44, 57, ____
9. What comes next? 11, 20, 29, 38, ____
10. What comes next? 19, 33, 47, 61, ____
11. What comes next? 1, 11, 21, 31, ____
12. What comes next? 5, 19, 33, 47, ____

12 questions · Seed 62 · 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? 18, 28, 38, 48, ____
58
Add 10 each time.
2. What comes next? 1, 10, 19, 28, ____
37
Add 9 each time.
3. What comes next? 12, 20, 28, 36, ____
44
Add 8 each time.
4. What comes next? 2, 11, 20, 29, ____
38
Add 9 each time.
5. What comes next? 20, 32, 44, 56, ____
68
Add 12 each time.
6. What comes next? 20, 35, 50, 65, ____
80
Add 15 each time.
7. What comes next? 12, 18, 24, 30, ____
36
Add 6 each time.
8. What comes next? 18, 31, 44, 57, ____
70
Add 13 each time.
9. What comes next? 11, 20, 29, 38, ____
47
Add 9 each time.
10. What comes next? 19, 33, 47, 61, ____
75
Add 14 each time.
11. What comes next? 1, 11, 21, 31, ____
41
Add 10 each time.
12. What comes next? 5, 19, 33, 47, ____
61
Add 14 each time.

12 questions · Seed 62 · Age guidance, not curriculum certification

Worksheet StudioPractice pack · Ages 10-12

Number patterns

Take your time. Show your thinking.

1. What comes next? 18, 28, 38, 48, ____
2. What comes next? 1, 10, 19, 28, ____
3. What comes next? 12, 20, 28, 36, ____
4. What comes next? 2, 11, 20, 29, ____
5. What comes next? 20, 32, 44, 56, ____
6. What comes next? 20, 35, 50, 65, ____
7. What comes next? 12, 18, 24, 30, ____
8. What comes next? 18, 31, 44, 57, ____
9. What comes next? 11, 20, 29, 38, ____
10. What comes next? 19, 33, 47, 61, ____
11. What comes next? 1, 11, 21, 31, ____
12. What comes next? 5, 19, 33, 47, ____

12 questions · Seed 62 · Age guidance, not curriculum certification

Worksheet StudioAnswer key · Ages 10-12

Number patterns

Answers and reasoning. Review before teaching.

1. What comes next? 18, 28, 38, 48, ____
58
Add 10 each time.
2. What comes next? 1, 10, 19, 28, ____
37
Add 9 each time.
3. What comes next? 12, 20, 28, 36, ____
44
Add 8 each time.
4. What comes next? 2, 11, 20, 29, ____
38
Add 9 each time.
5. What comes next? 20, 32, 44, 56, ____
68
Add 12 each time.
6. What comes next? 20, 35, 50, 65, ____
80
Add 15 each time.
7. What comes next? 12, 18, 24, 30, ____
36
Add 6 each time.
8. What comes next? 18, 31, 44, 57, ____
70
Add 13 each time.
9. What comes next? 11, 20, 29, 38, ____
47
Add 9 each time.
10. What comes next? 19, 33, 47, 61, ____
75
Add 14 each time.
11. What comes next? 1, 11, 21, 31, ____
41
Add 10 each time.
12. What comes next? 5, 19, 33, 47, ____
61
Add 14 each time.

12 questions · Seed 62 · Age guidance, not curriculum certification