Definitions
Fill in the blanks :
An integer can be _______ or _________.
It must be a ________ number.
________ is also an integer.
Fill in the blanks :
An integer can be positive or negative.
It must be a whole number.
Zero is also an integer.
True or False
16 is a natural number?
True or Fasle
True
Temperature
Yesterday it was 10 degrees Celsius outside. Tomorrow the temperature will fall by 15 degrees.
What will the temperature tomorrow be?
Workings
If the temperature drops 10 degrees it will become 0 degrees outside. If it then falls another 5 degrees from 0 it will now be -5 degrees Celsius outside.
10 - 15 = -5 degrees Celsius
What letter from the alphabet do we use to represent integers?
We use the letter 'Z'.
True or False
21.5 is a natural number?
True or False
False
It is not a whole number.
Elevation
If I am on the third floor of a building. How many levels/floors will I have to go down to get to the basement?
Elevation
The basement is just below the ground floor so it is at the level -1.
3 - ? = -1
The answer is 4 levels/floors.
Fill in the blanks :
A natural number is _______, ________ number.
Fill in the blanks :
A natural number is positive, whole number.
True or False
-11 is an integer?
True or False
True
Solve the Multiplication Wall
| |
|___|___|
|___|____|___|
-4 | 2 | -7 | 3
Solve the Multiplication Wall
| X |
| -64 | -96 |
| -8 | 8 | -12 |
-4 | 2 | 4 | -3
What letter from the alphabet do we use to represent natural numbers?
We use the letter 'N'.
True or False
All odd numbers are natural numbers?
True or False
False
-1 is odd and is not a natural number.