| Name __________________________ | Free-Ed.Net |
Date _________________ |
Pre-Algebra at Free-Ed.Net |
Section: Multiplying Signed Integers |
Complete the multiplication
| 1. ( +20) x ( + 6) = | 2. ( +19) x ( + 14) = | 3. ( +2) x ( + 15) = | 4. ( +9) x ( + 13) = |
| 5. ( –19 ) x ( –8) = | 6. ( –3 ) x ( –2) = | 7. ( –7 ) x ( –2) = | 8. ( –7 ) x ( –14) = |
| 9. ( +20) x ( –7) = | 10. ( +16) x ( –7) = | 11. ( +12) x ( –16) = | 12. ( +7) x ( –19) = |
| 13. ( –3) x ( +7) = | 14. ( –13) x ( +9) = | 15. ( –6) x ( +20) = | 16. ( –13) x ( +2) = |
| 17. ( +26)( +5) = | 18. ( –7)( +25) = | 19. ( +9)( +18) = | 20. ( –1)( +10) = |
| 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. ( +20) x ( + 6) = +120 |
2. ( +19) x ( + 14) = +266 |
3. ( +2) x ( + 15) = +30 |
4. ( +9) x ( + 13) = +117 |
| 5. ( –19 ) x ( –8) = +152 |
6. ( –3 ) x ( –2) = +6 |
7. ( –7 ) x ( –2) = +14 |
8. ( –7 ) x ( –14) = +98 |
| 9. ( +20) x ( –7) = –140 |
10. ( +16) x ( –7) = –112 |
11. ( +12) x ( –16) = –192 |
12. ( +7) x ( –19) = –133 |
| 13. ( –3) x ( +7) = –21 |
14. ( –13) x ( +9) = –117 |
15. ( –6) x ( +20) = –120 |
16. ( –13) x ( +2) = –26 |
| 17. ( +26)( +5) = +130 |
18. ( –7)( +25) = –175 |
19. ( +9)( +18) = +162 |
20. ( –1)( +10) = –10 |
| 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 |