| Name __________________________ | Free-Ed.Net |
Date _________________ |
Pre-Algebra at Free-Ed.Net |
Section: Adding Signed Integers |
Complete the addition
| 1. ( +1) + ( + 13) = | 2. ( +14) + ( + 16) = | 3. ( +5) + ( + 7) = | 4. ( +19) + ( + 2) = |
| 5. ( –11 ) + ( –3) = | 6. ( –13 ) + ( –20) = | 7. ( –3 ) + ( –16) = | 8. ( –11 ) + ( –20) = |
| 9. ( +11) + ( –3) = | 10. ( +9) + ( –8) = | 11. ( +15) + ( –4) = | 12. ( +16) + ( –9) = |
| 13. ( –3) + ( +5) = | 14. ( –1) + ( +5) = | 15. ( –4) + ( +9) = | 16. ( –4) + ( +14) = |
| 17. ( –19) + ( +19) = | 18. ( –17) + ( +11) = | 19. ( –7) + ( +4) = | 20. ( –10) + ( +4) = |
| This document may be reproduced for educational purposes at no cost and with this message, the copyright notice, and the Free-Ed.Net logo intact.. | Copyright © 2007 David L.
Heiserman |
| Name __________________________ | Free-Ed.Net |
Date _________________ |
Pre-Algebra at Free-Ed.Net |
Answer Key |
Section: Adding Signed Integers |
Complete the addition
| 1. ( +1) + ( + 13) = +14 |
2. ( +14) + ( + 16) = +30 |
3. ( +5) + ( + 7) = +12 |
4. ( +19) + ( + 2) = +21 |
| 5. ( –11 ) + ( –3) = –14 |
6. ( –13 ) + ( –20) = –33 |
7. ( –3 ) + ( –16) = –19 |
8. ( –11 ) + ( –20) = –31 |
| 9. ( +11) + ( –3) = +8 |
10. ( +9) + ( –8) = +1 |
11. ( +15) + ( –4) = +11 |
12. ( +16) + ( –9) = +7 |
| 13. ( –3) + ( +5) = +2 |
14. ( –1) + ( +5) = +4 |
15. ( –4) + ( +9) = +5 |
16. ( –4) + ( +14) = +10 |
| 17. ( –19) + ( +19) = +0 |
18. ( –17) + ( +11) = –6 |
19. ( –7) + ( +4) = –3 |
20. ( –10) + ( +4) = –6 |
| This document may be reproduced for educational purposes at no cost and with this message, the copyright notice, and the Free-Ed.Net logo intact.. | Copyright © 2007 David L.
Heiserman |