| Name __________________________ | Free-Ed.Net |
Date _________________ |
Pre-Algebra at Free-Ed.Net |
Section: Multiplying Signed Integers |
Complete the multiplication
| 1. ( +18) x ( + 13) = | 2. ( +10) x ( + 6) = | 3. ( +10) x ( + 18) = | 4. ( +19) x ( + 14) = |
| 5. ( –4 ) x ( –7) = | 6. ( –8 ) x ( –2) = | 7. ( –1 ) x ( –19) = | 8. ( –1 ) x ( –13) = |
| 9. ( +20) x ( –7) = | 10. ( +7) x ( –17) = | 11. ( +6) x ( –3) = | 12. ( +2) x ( –3) = |
| 13. ( –1) x ( +7) = | 14. ( –15) x ( +1) = | 15. ( –5) x ( +20) = | 16. ( –18) x ( +7) = |
| 17. ( –6)( +24) = | 18. ( +15)( +9) = | 19. ( –7)( +25) = | 20. ( –6)( +1) = |
| 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: Multiplying Signed Integers |
Complete the multiplication
| 1. ( +18) x ( + 13) = +234 |
2. ( +10) x ( + 6) = +60 |
3. ( +10) x ( + 18) = +180 |
4. ( +19) x ( + 14) = +266 |
| 5. ( –4 ) x ( –7) = +28 |
6. ( –8 ) x ( –2) = +16 |
7. ( –1 ) x ( –19) = +19 |
8. ( –1 ) x ( –13) = +13 |
| 9. ( +20) x ( –7) = –140 |
10. ( +7) x ( –17) = –119 |
11. ( +6) x ( –3) = –18 |
12. ( +2) x ( –3) = –6 |
| 13. ( –1) x ( +7) = –7 |
14. ( –15) x ( +1) = –15 |
15. ( –5) x ( +20) = –100 |
16. ( –18) x ( +7) = –126 |
| 17. ( –6)( +24) = –144 |
18. ( +15)( +9) = +135 |
19. ( –7)( +25) = –175 |
20. ( –6)( +1) = –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 |