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Square numbers & square roots
Evaluate whole-number squares (n²) and find exact positive square roots (√n). Review suitability for your learners before teaching.
Worksheet StudioPractice pack · Ages 7-9
Square numbers & square roots
Take your time. Show your thinking.
1. What is the positive square root of 25 (√25)?
2. What is 6 squared (6²)?
3. What is the positive square root of 49 (√49)?
4. What is 12 squared (12²)?
5. What is 19 squared (19²)?
6. What is 16 squared (16²)?
7. What is the positive square root of 169 (√169)?
8. What is the positive square root of 64 (√64)?
9. What is the positive square root of 36 (√36)?
10. What is the positive square root of 196 (√196)?
11. What is 8 squared (8²)?
12. What is the positive square root of 121 (√121)?
12 questions · Seed 44 · Age guidance, not curriculum certification
View the answer key
Worksheet StudioAnswer key · Ages 7-9
Square numbers & square roots
Answers and reasoning. Review before teaching.
1. What is the positive square root of 25 (√25)?
5Since 5 × 5 = 25, √25 = 5.
2. What is 6 squared (6²)?
3. What is the positive square root of 49 (√49)?
7Since 7 × 7 = 49, √49 = 7.
4. What is 12 squared (12²)?
14412² means 12 × 12 = 144.
5. What is 19 squared (19²)?
36119² means 19 × 19 = 361.
6. What is 16 squared (16²)?
25616² means 16 × 16 = 256.
7. What is the positive square root of 169 (√169)?
13Since 13 × 13 = 169, √169 = 13.
8. What is the positive square root of 64 (√64)?
8Since 8 × 8 = 64, √64 = 8.
9. What is the positive square root of 36 (√36)?
6Since 6 × 6 = 36, √36 = 6.
10. What is the positive square root of 196 (√196)?
14Since 14 × 14 = 196, √196 = 14.
11. What is 8 squared (8²)?
12. What is the positive square root of 121 (√121)?
11Since 11 × 11 = 121, √121 = 11.
12 questions · Seed 44 · Age guidance, not curriculum certification
Worksheet StudioPractice pack · Ages 7-9
Square numbers & square roots
Take your time. Show your thinking.
1. What is the positive square root of 25 (√25)?
2. What is 6 squared (6²)?
3. What is the positive square root of 49 (√49)?
4. What is 12 squared (12²)?
5. What is 19 squared (19²)?
6. What is 16 squared (16²)?
7. What is the positive square root of 169 (√169)?
8. What is the positive square root of 64 (√64)?
9. What is the positive square root of 36 (√36)?
10. What is the positive square root of 196 (√196)?
11. What is 8 squared (8²)?
12. What is the positive square root of 121 (√121)?
12 questions · Seed 44 · Age guidance, not curriculum certification
Worksheet StudioAnswer key · Ages 7-9
Square numbers & square roots
Answers and reasoning. Review before teaching.
1. What is the positive square root of 25 (√25)?
5Since 5 × 5 = 25, √25 = 5.
2. What is 6 squared (6²)?
3. What is the positive square root of 49 (√49)?
7Since 7 × 7 = 49, √49 = 7.
4. What is 12 squared (12²)?
14412² means 12 × 12 = 144.
5. What is 19 squared (19²)?
36119² means 19 × 19 = 361.
6. What is 16 squared (16²)?
25616² means 16 × 16 = 256.
7. What is the positive square root of 169 (√169)?
13Since 13 × 13 = 169, √169 = 13.
8. What is the positive square root of 64 (√64)?
8Since 8 × 8 = 64, √64 = 8.
9. What is the positive square root of 36 (√36)?
6Since 6 × 6 = 36, √36 = 6.
10. What is the positive square root of 196 (√196)?
14Since 14 × 14 = 196, √196 = 14.
11. What is 8 squared (8²)?
12. What is the positive square root of 121 (√121)?
11Since 11 × 11 = 121, √121 = 11.
12 questions · Seed 44 · Age guidance, not curriculum certification