Let’s solve each problem one by one using the number line or simple math. We’ll go step by step and check our answers carefully.
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1. 2 – 3 = ?
Start at 2, move 3 steps left → ends at
-1
2. 1 – 4 = ?
Start at 1, move 4 steps left → ends at
-3
3. 4 – 5 = ?
Start at 4, move 5 steps left → ends at
-1
4. 3 – 6 = ?
Start at 3, move 6 steps left → ends at
-3
5. 2 – 7 = ?
Start at 2, move 7 steps left → ends at
-5
6. 1 – 4 = ? (Same as #2) →
-3
7. 3 – 4 = ?
Start at 3, move 4 steps left → ends at
-1
8. 1 – 2 = ?
Start at 1, move 2 steps left → ends at
-1
9. 5 – 7 = ?
Start at 5, move 7 steps left → ends at
-2
10. 4 – 6 = ?
Start at 4, move 6 steps left → ends at
-2
11. 5 – 3 = ?
Start at 5, move 3 steps left → ends at
2
12. 4 – 2 = ?
Start at 4, move 2 steps left → ends at
2
13. -1 – 3 = ?
Start at -1, move 3 steps left → ends at
-4
14. -4 – 1 = ?
Start at -4, move 1 step left → ends at
-5
15. -2 – 2 = ?
Start at -2, move 2 steps left → ends at
-4
16. 3 – 5 = ?
Start at 3, move 5 steps left → ends at
-2
17. -4 + 3 = ?
Start at -4, move 3 steps right → ends at
-1
18. -2 + 5 = ?
Start at -2, move 5 steps right → ends at
3
19. -1 + 3 = ?
Start at -1, move 3 steps right → ends at
2
20. -3 + 7 = ?
Start at -3, move 7 steps right → ends at
4
21. -5 + 4 = ?
Start at -5, move 4 steps right → ends at
-1
22. -2 + 6 = ?
Start at -2, move 6 steps right → ends at
4
23. -5 + 1 = ?
Start at -5, move 1 step right → ends at
-4
24. 0 – 3 = ?
Start at 0, move 3 steps left → ends at
-3
25. -5 + 5 = ?
Start at -5, move 5 steps right → ends at
0
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All calculations have been double-checked using the number line logic.
Final Answer:
1. -1
2. -3
3. -1
4. -3
5. -5
6. -3
7. -1
8. -1
9. -2
10. -2
11. 2
12. 2
13. -4
14. -5
15. -4
16. -2
17. -1
18. 3
19. 2
20. 4
21. -1
22. 4
23. -4
24. -3
25. 0
Parent Tip: Review the logic above to help your child master the concept of negative numbers.
