Let’s solve each problem step by step. Remember:
- Adding a negative is like subtracting.
- Subtracting a negative is like adding.
- Use number lines or think in terms of “owing” and “having” if it helps.
---
1) (-33) + 47
Start at -33, move 47 to the right → 47 - 33 =
14
2) (-30) - (-82)
Subtracting a negative = adding → -30 + 82 =
52
3) (-42) + 68
68 - 42 =
26
4) (-36) + (-58)
Adding two negatives → add their sizes, keep negative → -(36+58) =
-94
5) 11 - (-23)
Subtracting negative = adding → 11 + 23 =
34
6) 42 - (-20)
Same as above → 42 + 20 =
62
7) (-662) - 491
Both negative effect → -662 - 491 = -(662+491) =
-1153
8) 990 - (-118)
→ 990 + 118 =
1108
9) 5 - (-7)
→ 5 + 7 =
12
10) 2 + (-7)
→ 2 - 7 =
-5
11) (-17) + (-22)
→ -(17+22) =
-39
12) (-152) - 183
→ -152 - 183 = -(152+183) =
-335
13) (-1) + (-7)
→ -(1+7) =
-8
14) 2 - (-3)
→ 2 + 3 =
5
15) (-909) + 458
Think: 909 - 458 = 451, but since 909 is bigger and negative →
-451
16) 981 + (-257)
→ 981 - 257 =
724
17) (-7) - (-8)
→ -7 + 8 =
1
18) (-987) - (-403)
→ -987 + 403 = -(987 - 403) =
-584
19) 600 - (-927)
→ 600 + 927 =
1527
20) 839 + (-425)
→ 839 - 425 =
414
---
Final Answer:
1. 14
2. 52
3. 26
4. -94
5. 34
6. 62
7. -1153
8. 1108
9. 12
10. -5
11. -39
12. -335
13. -8
14. 5
15. -451
16. 724
17. 1
18. -584
19. 1527
20. 414
Parent Tip: Review the logic above to help your child master the concept of subtracting negative numbers worksheet pdf.
