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Section: Multiplying  Signed Integers

Complete the multiplication

1.        ( +14) x ( + 6) = 2.        ( +12) x ( + 13) = 3.        ( +5) x ( + 2) = 4.        ( +16) x ( + 6) =

 

5.        ( –17 ) x ( –7) = 6.        ( –8 ) x ( –15) = 7.        ( –18 ) x ( –17) = 8.        ( –19 ) x ( –4) =

 

9.        ( +15) x ( –1) = 10.        ( +5) x ( –18) = 11.        ( +20) x ( –11) = 12.        ( +10) x ( –5) =

 

13.        ( –2) x ( +3) = 14.        ( –9) x ( +12) = 15.        ( –10) x ( +15) = 16.        ( –4) x ( +12) =

 

17.        ( +18)( –9) = 18.        ( +22)( +19) = 19.        ( –11)( –9) = 20.        ( +14)( –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
All Rights Reserved

 

Name __________________________

Free-Ed.Net
www.free-ed.net
Free Education on the Internet

Date _________________

Pre-Algebra at Free-Ed.Net

Answer Key

Section: Multiplying Signed Integers

Complete the multiplication

1.        ( +14) x ( + 6) =
+84
2.        ( +12) x ( + 13) =
+156
3.        ( +5) x ( + 2) =
+10
4.        ( +16) x ( + 6) =
+96

 

5.        ( –17 ) x ( –7) =
+119
6.        ( –8 ) x ( –15) =
+120
7.        ( –18 ) x ( –17) =
+306
8.        ( –19 ) x ( –4) =
+76

 

9.        ( +15) x ( –1) =
–15
10.        ( +5) x ( –18) =
–90
11.        ( +20) x ( –11) =
–220
12.        ( +10) x ( –5) =
–50

 

13.        ( –2) x ( +3) =
–6
14.        ( –9) x ( +12) =
–108
15.        ( –10) x ( +15) =
–150
16.        ( –4) x ( +12) =
–48

 

17.        ( +18)( –9) =
–162
18.        ( +22)( +19) =
+418
19.        ( –11)( –9) =
+99
20.        ( +14)( –6) =
–84

 

 

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
All Rights Reserved