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# 6/7th Math Vocab

### Vocab for the first half of the year

WORDMEANING/DEFINITIONEXAMPLE
Difference Left over amount when one value is subtracted from another 10 - 7 = 3 (3 is the Difference)
Product Total when a number is added multiple times using a shortcut; answer to a multiplication problem 5 x 9 = 45 (45 is the Product)
Quotient Answer to a division problem; Making groups of with division 15/5 = 3 (15 divided by 5 has a quotient of 3)
Factors Numbers being multiplied together to get a product; some numbers have many factors 7 x 8 = 56 (7 and 8 are the factors)
Prime Numbers Numbers you can only divide by themself and one; they only have 2 factors 1, 2, 3, 5, 7, 11...
Composite Numbers Numbers that have more than 2 factors 4, 6, 8, 9, 10... (4 -> 2 x 2 AND 4 x 1)
Decimal Part of a whole; less than 1; same as a proper fraction; found by dividing a proper fraction 0.25 is the same as the fraction 1/4 0.5 is less than 1 whole (it's half)
Fraction Model Visual representation of a fraction; used to help understand operations with fractions Imagine a picture of a circle broken into 8 parts. Each part is 1/8
Prime Factorization Finding all the factors of numbers in their prime forms using a factor tree The number 20 is 10 x 2, and 10 is 5 x 2 Prime factorization is 2x2x5
Numerical Expression a basic math problem with the operations of +,-, x, / and just numbers, NO EQUAL SIGNS; you evaluate them 5 x6, 7+7, 8/2, 10-1
Algebraic Expression a basic math problem that has numbers and variables a + 2, cd, 8-w, 15/d
Variable a lowercase letter used in place of a number throughout one problem; used in algebra a = 5 Evaluate a + 3 -> means 5 + 3 is the same as 8
Integer Positive and Negative whole numbers on a number line -3, -2, -1, 0, 1, 2, 3... (The numbers go as long as you can count)
Distributive Property find or use a common number both other numbers can divide or multiply by, the common number is multiplied by the other factors which are in parenthesis being added 12 + 10 = 22 Distributive Property -> 2(6 +5)
GCF Greatest Common Factor or think "the biggest number I can divide all the other numbers by" GCF of 12 and 24 is 12. GCF of 15 and 20 is 5.
LCM Least Common Multiple or think the smallest value other numbers share after multiplying themselves LCM of 4 and 6 is 12 LCM of 110 and 10 is 110
Commutative Property numbers can be either added or multiplied in any order and it will not change the outcome 2 + 3 = 3 +2 4 x 5 = 5 x 4
Sum Total amount when two or more numbers are added together 3 + 5 + 10 = 18 (18 is the SUM)
Created by: kristen.carlin