FRAME 5-4.
Solution to
Rule for Addition of Two Negative Numbers
Frame 5-3.
+
(1) Change both numbers to absolute values.
8
+
5 + +3 = +5 + +3 =
(2) Add their absolute values.
+
5 + 3 = +8
(3) Place a negative symbol in front of the sum.
Add: 5 + 3
Answer _____________
_______________________________________________________________________________________
FRAME 5-5.
Solution to
Rule for Addition of a Positive Number and a Negative Number
Frame 5-4.
(1) Change both numbers to absolute values.
8
5 + 3 = 5 + 3 =
(2) Subtract the smaller absolute value from the larger
absolute value.
5 + 3 = 8
(3) Place the original sign of the larger absolute value in front
of the difference (remainder).
a. Add: +5 + 3
Answer _____________
b. Add: 5 + +3
Answer _____________
_______________________________________________________________________________________
FRAME 5-6.
Solution to
In exercise "a" above, did you notice that adding a "smaller" negative
Frame 5-5.
number to a positive number is much like subtracting a smaller positive
a. +2
number from a larger positive number?
+
5 + 3 =
Also, the answers to "a" and "b" had the same absolute value. The
difference is that the first problem resulted in a positive answer and the
+
+5 3 =
second resulted in a negative answer.
+
5 3 = +2
Remember: Add the absolute values if the signs of the two numbers are
b. 2
the same (both positive, both negative) and ____________ the absolute
values if the signs of the two numbers are not the same (one positive,
5 + +3 =
one negative).
5 +3 =
5 3 = 2
_______________________________________________________________________________________
MD0900
5-3