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Level 39

Positive Numbers & the Number Line


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number line
a diagram that represents numbers as points on a line.
whole number
0, 1, 2, 3, 4, 5...
positive number
all the numbers greater than 0, on a horizontal number line to the right of 0, and all numbers above the 0 on a vertical number line
inequality
A mathematical sentence that shows the relationship between quantities that are not equivalent
Composite number
a number with more than two factors.
Prime number
A number that can only be divided by 1 and itself. The numbers left at the bottom of the tree
factor
A number that divides evenly into another number. 3 is a factor of 15 (look at the chart!)
prime factor
A composite number expressed as a product of prime numbers.
common factor
a number that is a factor of two or more numbers
common multiple
A number that is a multiple of two or more numbers
least common multiple
The smallest multiple (other than zero) that two or more numbers have in common.
greatest common factor
The greatest factor that two or more numbers share.
multiple
Answers to the Times Tables (eg: Multiples of 3 are: 3, 6, 9, 12, 15 etc.)
square of a number
a number times itself
Base
the number that is written with an exponent
Square Root
when multiplying a number by itself to get a square number
exponent
A mathematical notation indicating the number of times a quantity is multiplied by itself
Perfect Square
the number that forms when two same numbers are multiplied together
cube of a number
when a number is multiplied by itself three times
cube root
the number that is multiplied by itself three times
perfect cube
the product that results when three numbers are multiplied together
numerical expression
A mathematical phrase that has a combination of numbers and at least one operation
factors
the numbers being multiplied
multiples
numbers you say when you skip count. Multiples of 2 are: 2,4,6,8,...
prime
a number that has factors of itself and 1
composite
a number that has multiple factors (prime with more factors)
simplify
find an answer in its simplest form. example 2 +3 can be simplified to 5
Divisible
describes a number that can be divided into equal parts and has no remainder
greatest common factor (GCF)
of two more numbers, the common factor that is greater than any other common factor
least common multiple (LCM)
a multiple that is shared between two or more numbers that is lower than all the other common multiples
interval
the space between two points on a number line
base - of an exponent
in an expression of the form a to the nth power, the base a is used as a factor n times