Let’s solve each problem one by one. Remember: a square number is when you multiply a number by itself — like 3² = 3 × 3 = 9.
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1. 3² + 20
3² = 9 → 9 + 20 =
29
2. 5² + 10
5² = 25 → 25 + 10 =
35
3. 4² + 50
4² = 16 → 16 + 50 =
66
4. 8² + 13
8² = 64 → 64 + 13 =
77
5. 7² + 22
7² = 49 → 49 + 22 =
71
6. 9² + 19
9² = 81 → 81 + 19 =
100
7. 14 + 1²
1² = 1 → 14 + 1 =
15
8. 22 + 3²
3² = 9 → 22 + 9 =
31
9. 17 + 5²
5² = 25 → 17 + 25 =
42
10. 20 - 4²
4² = 16 → 20 - 16 =
4
11. 16 - 3²
3² = 9 → 16 - 9 =
7
12. 24 - 1²
1² = 1 → 24 - 1 =
23
13. 5² - 5
5² = 25 → 25 - 5 =
20
14. 7² - 8
7² = 49 → 49 - 8 =
41
15. 6² - 9
6² = 36 → 36 - 9 =
27
16. 7² - 23
7² = 49 → 49 - 23 =
26
17. 9² - 36
9² = 81 → 81 - 36 =
45
18. 8² - 46
8² = 64 → 64 - 46 =
18
19. 3² + 3²
3² = 9 → 9 + 9 =
18
20. 5² + 2²
5² = 25, 2² = 4 → 25 + 4 =
29
21. 4² + 1²
4² = 16, 1² = 1 → 16 + 1 =
17
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All calculations checked and verified.
Final Answer:
29, 35, 66, 77, 71, 100, 15, 31, 42, 4, 7, 23, 20, 41, 27, 26, 45, 18, 18, 29, 17
Parent Tip: Review the logic above to help your child master the concept of square number worksheet.
