Let’s go through each problem one by one. We’re adding and subtracting positive and negative numbers. Remember:
- Adding a negative is like subtracting:
→ 5 + (-3) = 5 - 3 = 2
- Subtracting a negative is like adding:
→ 5 - (-3) = 5 + 3 = 8
- When you add two negatives, the result is more negative:
→ (-4) + (-6) = -10
- When signs are different, subtract the smaller number from the bigger one and keep the sign of the bigger number:
→ (-8) + 3 = -5 (because 8 > 3, and negative wins)
Let’s solve each:
1. 5 + (-4) = 5 - 4 =
1
2. (-25) - 24 = -25 - 24 =
-49
3. (-31) + (-31) = -31 - 31 =
-62
4. (-8) + 16 = 16 - 8 =
8
5. (-4) - 20 = -4 - 20 =
-24
6. (-36) - (-18) = -36 + 18 = -18 (since 36 > 18, negative wins) →
-18
7. (-36) + (-4) = -36 - 4 =
-40
8. (-18) + (-7) = -18 - 7 =
-25
9. (-12) - (-18) = -12 + 18 = 6 (since 18 > 12, positive wins) →
6
10. (-8) + 7 = 7 - 8 = -1 →
-1
11. 9 + (-4) = 9 - 4 =
5
12. (-1) + 4 = 4 - 1 =
3
13. (-2) + (-2) = -2 - 2 =
-4
14. (-6) + (-4) = -6 - 4 =
-10
15. (-6) + 4 = 4 - 6 =
-2
16. 8 + (-1) = 8 - 1 =
7
17. 10 - (-10) = 10 + 10 =
20
18. (-16) - 6 = -16 - 6 =
-22
19. (-28) - 24 = -28 - 24 =
-52
20. 34 + (-1) = 34 - 1 =
33
21. 59 + (-19) = 59 - 19 =
40
22. 6 + (-88) = 6 - 88 = -82 →
-82
23. (-19) + (-19) = -19 - 19 =
-38
24. 0 + (-1) = 0 - 1 =
-1
All done! Let me double-check a few tricky ones:
- #6: (-36) - (-18) → -36 + 18 → yes, -18 ✔️
- #9: (-12) - (-18) → -12 + 18 → 6 ✔️
- #17: 10 - (-10) → 10 + 10 → 20 ✔️
- #22: 6 - 88 → since 88 is bigger, answer is negative: -82 ✔️
Everything checks out.
Final Answer:
1, -49, -62, 8, -24, -18, -40, -25, 6, -1, 5, 3, -4, -10, -2, 7, 20, -22, -52, 33, 40, -82, -38, -1
Parent Tip: Review the logic above to help your child master the concept of adding and subtracting negative and positive numbers worksheet.
