Level 490
Level 492

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Integers

the set of positive whole numbers and their opposites(negative numbers) and 0

Rational numbers

Numbers that include integers, wholes, and natural numbers.

negative numbers

-amounts owed

opposites

two numbers that have the same absolute value but have different signs

Positive numbers

represents points to the right of the zero. p63

Multiplicative Identity

The product of any number and one (=1) is the number itself.

commutative property of addition

If the order of the terms changes, the sum stays the same.

additive inverse

the opposite of a number

absolute value

The distance of a number from zero on a number line; shown by | |

Repeating Decimal

A decimal in which one or more digits repeat infinitely. Example: 0.757575...

Additive Identity

The additive identity is 0. a + 0 = 0 + a = a

multiplicative inverse

reciprocal of a number

Zero Pair

Pair of numbers whose sum is zero

commutative property of multiplication

If the order of factors changes, the product stays the same.

Terminating Decimal

A decimal number that ends or terminates. Example: 6.75

Associative Property

The property that states that when you add or multiply numbers, you can group the numbers in any combination and you will get the same sum or product.

Commutative Property

The property that states that when you add or multiply numbers, you can add them or multiply them in any order and still get the same sum or product.

distributive property

Multiplying a sum by a number is the same as multiplying each term by the number and then adding (or subtracting ) the products.

Identity Property of One

The property that states that the product of 1 and any number is that number

Identity Property of Zero

The property that states that the sum of zero and any number is that number

long division

a special procedure to divide larger numbers

Natural numbers

A group of numbers that include 1,2, 3,.....

negative numbers

the set of numbers less than zero

Opposites/Opposite Numbers

two different numbers that have the same absolute value

reciprocal

One of two numbers whose product is 1; it is also called multiplicative inverse.

Whole Numbers

Zero and the counting numbers 1, 2, 3, 4, 5, 6, and so on. If a number has a negative sign, a decimal point, or a part that's a fraction, it is NOT a whole number.

coordinate plane

A plan formed by the intersection of a horizontal number line called the x-axis and a vertical number line called the y-axis.

order of operations

The rules for calculating a maths question containing mixed operations, such as 14 - 2 x 4 + 12

exponent

A mathematical notation indicating the number of times a quantity is multiplied by itself

Base

the number that is written with an exponent

factor

A number that divides evenly into another number. 3 is a factor of 15 (look at the chart!)

power

a number produced by raising a base to an exponent