Adding Integers
5
10-5=
5
The set of whole numbers and their opposites
Integers
3 (+) counters + 2 (+) counters =
5 (+) counters
-4
8 + (-1)=
7
-8
The numbers to the left of the zero on the number line ex. -8, -5, -3, -2, -1
Negatives
5 (-) counters + 2 (+) counters =
3 (-) counters
(-10)-(-8)=
-2
0
7 - (-1)=
8
The numbers to the right of the zero on the number line ex. 1,2,3,4,5
Positives
6 (-) counters + 3 (-) counters=
-9 (-)
(+5) - (-3)=
8
(-10) + (-4)=
-14
-13
When we subtract a negative we _____ _________
Add the opposite
5 (-) counters - 6 (-) counters =
1 (+)
(-12) - (12)=
-24
(-12) +7 =
-5
(-10)- (-10) =
0
True or False:
The following questions give the same answer:
5 + 2=
5- (-2) =
True, answer is 7
4 (-) counters - 6 (+) counters=
-10 (-) counters
(+7) - (-3)=
10