Math Grade 6 Vocabulary Unit 1

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Divisor

A number that divides another number. For example, in 36 ÷ 3 = 12, 3 is the _______________.

Factors

The factors of a number are all the numbers that can be evenly divided into it. Example 12 are 1, 2, 3,4, 6, and 12 ; 1 x 12 = 12 , 2 x 6 = 12, and 3 x 4 = 12

Greatest Common Factor (GCF)

The largest quantity that factors evenly into two or more integers.

Least Common Denominator

The least common multiple of the denominators of two or more fractions.

Prime Factorization

A composite number written as the product of its prime numbers.

Fraction

A number that names a part of a whole or a part of a collection. For example, If a whole is divided into 3 parts each part is one third (1/3) of the whole. The denominator tells you how many equal parts the whole is divided into. The numerator tells you how many parts you have.

Numerator

A number written above or to the left of the line in a common fraction to indicate the number of parts of the whole. For example, 5 is the ______________________ in the fraction 5/8. Also called the dividend in a division problem.

Power

A product of repeated factors.

Algorithm

A set of rules for performing a procedure.

Composite Number

A whole number greater than 1 that has more than 2 factors. A whole number that is not a prime number.(white numbers in the chart)

Prime Number

A whole number that has exactly two factors, 1 and itself. Example: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97 (blue numbers in the chart)

Estimate

An approximation of a number, based on reasonable assumptions. For example, an ____________________ for 21 x 305 would be 20 x 300 = 6000.

Numerical Expression

An expression that contains only numbers and operations.

Denominator

Bottom number in a fraction. It indicates the number of parts the whole is divided into. For example, 8 is the ____________________ in the fraction 5/8. Also called the divisor in a division problem.

Distributive Property

Numbers added or subtracted within a set of parentheses can each be multiplied by a number outside the parentheses. For example, 3 x (5 + 2) = (3 x 5) + (3 x 2) = 15 + 6 = 21 = 3 x 7

Multiples

Products that result from _______________ the number by each of the whole numbers. For example the __________________ of 6 are; 6, 12, 18, 24, 30, 36, 42, 48, 54, 60, 66, 72 ...

Dividend

The number that is being divided in a division problem. For example, in 36 ÷ 3 = 12, 36 is the _________________.

Order of Operations

The order in which to perform operations when evaluating expressions with more than one operation.

Evaluate

The order of operations used to find the value of a numerical expression.

Base

The repeated factor when using exponents.

Least Common Multiple (LCM)

The smallest quantity that is divisible by two or more given values without a remainder.

Exponent

This number indicates the number of times the base is used as a factor.

Multiplicative Inverses

Two numbers whose product is 1. For example, 3/4 × 4/3 = 1 and 4/3 × 3/4 = 1.

Factor Pair

Two whole numbers other than zero that are multiplied together to get a product.

Reciprocal

one of a pair of numbers whose product is 1: the ________________ of 2/3 is 3/2; a fraction whose numerator and denominator have been flipped. The _____________________ of 3/4 is 4/3.


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