Let's solve each of these addition problems involving negative numbers step by step. The key idea is to understand how positive and negative numbers interact when added.
Rules to Remember:
- Adding a
positive number to a negative number: move right on the number line.
- Adding a
negative number (i.e., subtracting) to another number: move left on the number line.
- When adding two negative numbers, add their absolute values and keep the negative sign.
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Now let's go through each problem:
1.
−3 + 2 = ?
Start at −3, move 2 steps to the right → −1
✔ −1
2.
−9 + 6 = ?
Start at −9, move 6 steps to the right → −3
✔ −3
3.
−4 + 2 = ?
Start at −4, move 2 steps to the right → −2
✔ −2
4.
−7 + 4 = ?
Start at −7, move 4 steps to the right → −3
✔ −3
5.
−9 + (−3) = ?
This is −9 − 3 = −12
✔ −12
6.
−6 + 4 = ?
Start at −6, move 4 steps to the right → −2
✔ −2
7.
−8 + (−8) = ?
This is −8 − 8 = −16
✔ −16
8.
−7 + 6 = ?
Start at −7, move 6 steps to the right → −1
✔ −1
9.
−5 + (−2) = ?
This is −5 − 2 = −7
✔ −7
10.
−2 + 1 = ?
Start at −2, move 1 step to the right → −1
✔ −1
11.
−9 + (−2) = ?
This is −9 − 2 = −11
✔ −11
12.
−9 + 2 = ?
Start at −9, move 2 steps to the right → −7
✔ −7
13.
−6 + (−4) = ?
This is −6 − 4 = −10
✔ −10
14.
−8 + 5 = ?
Start at −8, move 5 steps to the right → −3
✔ −3
15.
−3 + 5 = ?
Start at −3, move 5 steps to the right → 2
✔ 2
16.
−4 + (−4) = ?
This is −4 − 4 = −8
✔ −8
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Final Answers:
1. −1
2. −3
3. −2
4. −3
5. −12
6. −2
7. −16
8. −1
9. −7
10. −1
11. −11
12. −7
13. −10
14. −3
15. 2
16. −8
✔ All solved! Let me know if you'd like a visual explanation using a number line for any of them.
Parent Tip: Review the logic above to help your child master the concept of adding negative numbers worksheet.
