2. 0, 1, 2, 3, 4, 5...
Whole Numbers
- start with zero
3. 1, 2, 3, 4, 5...
Natural Numbers
or
Counting Numbers
- start with one
4. …-3,
-2, -1, 0, 1, 2, 3…
Integers
- include positive whole numbers,
negative whole numbers, and zero.
5. Integers
-5 -4 -3 -2 -1 0 1 2 3 4
Negative
Integers
5
Positive
Integers
Origin
The integer zero is neither positive or negative.
6.
7. Opposite Numbers are numbers
that are the same distance from zero in
the opposite direction.
-5 -4 -3 -2 -1 0 1 2 3 4
-5 -4 -3 -2 -1 0 1
5
2 3 4 5
8.
9. Absolute value of an integer is
the distance a number is from zero on a
number line.
|-5|
Two vertical bars around a number
Note: means the absolute value of the
number.
14. HINT:
If you don’t see a negative
or positive sign in front of a
number it is positive.
-10 +8
9
15. • We can represent addition of integers using
red and yellow counters.
• Red tiles will represent negative
integers, and yellow tiles will represent
positive integers.
Negative
Integer
Positive
Integer
16. • If there are the same number of red tiles
as yellow tiles it is equal to zero
=0