Order of Operations
2 + 3 x 5
17
What is an integer?
An integer is a whole number that can be positive, negative, or zero, without any decimal or fractional parts.
What is a prime number?
A whole number greater than one that has exactly two distinct factors: One and itself.
42 =
42 = 16
What are 3 NEW ECAs available this year?
MUN, Dance Club, Football, Rugby
-4 - -6 =
-4 - -6 = 2
What is a multiple?
A multiple is the number you get when you multiply a given number by an integer.
Is 1 a prime number? Why or why not?
NO! It only has 1 factor, and prime numbers have exactly 2 factors.
33 =
33 = 27
3 x (4 - 8)/2 =
3 x (4 - 8)/2 = -6
What is a factor?
A whole number that divides evenly into another number without leaving a remainder.
Are there any even prime numbers? If so, what are they?
Yes: 2 is the only even prime number.
50 =
50 = 1
8 + (2 - 5)2
8 + (2 - 5)2 = 17
What is HCF short for?
Highest Common Factor
List the first five prime numbers.
2, 3, 5, 7, 11
4-2 =
4-2 = 1/16
-(23 - 2) + 2
-(23 - 2) + 2 = -4
What is LCM short for?
Lowest Common Multiple
List the first 10 prime numbers.
2, 3, 5, 7, 11, 13, 17, 19, 23, 29
82 x 85 = 8?
82 x 85 = 87