1.1.5   Adding Rational Numbers   ("Adaptive" Learning)

Javier is working on commission only,  and his first two sales earn   and    (dollars) respectively.   What is his total?

  Addition Table  
Ref #     Fact Ref #     Fact
1.   1 +  1 =  2 5.   0 +  0 =   0
2.   1 +  0 =  1 6.  -1 + -1 = -2
3.   1 + -1 =  0 7.  -1 +  0 = -1
4.   0 + -1 = -1 8.  -5 +  1 = -4
 

 

Practice: Press (and hold down) "See Answer" Button until you understand Addition.   The more you use this program,  the greater your "number sense!"

Operand #1   Operand #2   Result

+

=

   Credit Question: do the problem below.  (10 points for correct answer).   
              Total points    80 points to pass.
 
+          
  =         Enter answer.