Represent with an Integer
A bird is flying 30 meters above sea level.
Positive 30
Represent the opposite of 15 on a number line.
(Draw on your whiteboard)
Teach will check work on your board.
which is the smaller number: negative twenty or positive twenty?
-20 or negative twenty
True or False: Zero is neither negative nor positive
True
-(-5)
5
Sea Level
zero
20 degrees below 0.
-20
Order from least to greatest.
-6, 0, 1, -10, 20, -2
-10, -6, -2, 0, 1, 20
Which of these is a natural number?
a) -5
b) 10
c) 2.3
10, it's a positive whole number
What is the opposite of -1?
1
It is 40 degrees below zero.
-40
Give one example of a number that is to the left of the number -5 on a number line.
EG. -6, -7, -8, -9, -10, -11, etc.
Order from least to greatest.
10, -22, 0, -6, 6, -3
-22, -6, -3, 0, 6, 10
Opposites are numbers that are ______ distance from zero in _______ directions
Equal, Opposite
-1,543
I deposited $50 into the bank.
Positive $50
Represent the following values on a number line (use decimals)
-1/2, 0.2, -2 1/4 , 3.9
Teacher Checks
Which is the greater integer?
-43 or -10
Why?
Is the following number a rational number?
3/0
No!
What is the opposite of 0?
0
I withdrew $200 from my account.
-$200
Explain why a number less than -10 represents a debt greater than $10
Example: -15 is less than -10, but -15 represents owing 15 so it's a greater debt
Which is greater?
-3/4 or -0.72
-0.72
What is the correct answer to the following equation?
-|-4| + |15|
11
A diver went 23 feet below the water. Write an integer to represent the situation and define 0.
What is the opposite of that number?
-23, 0 = sea level
Opposite = 23