"Divisor is knocking at the door." Outside number of division problem.
What is a dividend?
"Dividend is within." Outside number of division problem.
What is prime?
A number that is only divisible by one and itself.
What is composite?
A number that isn't only divisible by one and itself. The opposite of prime.
What does odd mean?
A number that ends in 1,3,5,7,9.
What does even mean?
A number that ends in 2,4,6,8,0.
What is Greatest Common Factor?
GCF is when you have 2 numbers, it is the biggest number that will go into both numbers.
Example: GCF of 16 and 24 is 8.
What is Least Common Multiple?
LCM is when you have 2 numbers, it is the smallest number that will go into both numbers.
Example: LCM of 8 and 12 is 24.
What is a factor?
What goes into a number.
Example: Factors of 12: 1,2,3,4,6,12.
What is a multiple?
Product of 2 numbers.
Example: Multiples of 12: 12,24,36,48,60,72,84,96,108.
What is Distributive Property?
Use the Ladder Method the GCF.
The remaining numbers below the ladder are the addends that go inside the ().
Write the expression.
Example: 24+16= 8(3+2)
What does add mean?
To bring two or more numbers (or things) together to make a new total.
Example: If you add 2 and 3 you get 5.
What does subtract mean?
To take one number away from another.
Example: 5 - 2 = 3
What does multiply mean?
The basic idea of multiplication is repeated addition. For example: 5 × 3 = 5 + 5 + 5 = 15
What does division mean?
Division is splitting into equal parts or groups. It is the result of "fair sharing".
Example: We use the ÷ symbol, or sometimes the / symbol to mean divide: 12 / 3 = 4 12 ÷ 3 = 4
What is dividing by a multi- digit divisor?
When the divisor in a division problem is more than one digit.
What is divisibility?
When one number can be divided by another and the result is an exact whole number. Example: 15 is divisible by 3, because 15 ÷ 3 = 5 exactly But 9 is not divisible by 2 because 9 ÷ 2 is 4 with 1 left over.
What is numerator?
The number on top of a fraction.
What is denominator?
The number on the bottom of a fraction.
What does simplify mean?
To make a fraction smaller by dividing.
What is an improper fraction?
When the numerator is bigger than the denominator.