Page 50 - TB_6B
P. 50
Method 2 Use addition of integers.
To subtract an integer, add its opposite number.
5 2=5 2 2 3=2 3
=3 =5
2 . Subtract the integers using the method above.
a. 7 12 = 7 12 b. 8 9 c. 6 8
=5
d. 4 5=4 5 e. 6 2 f. 3 6
=9
g. 5 9 = 5 9 h. 7 2 i. 4 3
= 14
20. Balloons and Stones 39
To subtract an integer, add its opposite number.
5 2=5 2 2 3=2 3
=3 =5
2 . Subtract the integers using the method above.
a. 7 12 = 7 12 b. 8 9 c. 6 8
=5
d. 4 5=4 5 e. 6 2 f. 3 6
=9
g. 5 9 = 5 9 h. 7 2 i. 4 3
= 14
20. Balloons and Stones 39
