Natural Numbers & Integers Flashcards
Whole positive numbers are called “. “ numbers? Not including 0
Natural numbers
A number that divides evenly into a second number is called a “. “ of the second number?
Multiple
A “. “ number has 2 factors only?
Prime Numbers
LCM stands for what?
Lowest Common Multiple
HCF stands for what?
Highest Common Factor
A number multiplied by itself to give a second number is called the “. “ of the second number?
A square of the second number
1,4,9,16&25 are called “. “ numbers
Square numbers
BIRDMAS stands for:
Brackets,Indices,(square) Roots,Division,Multiplication,Addition & Subtraction
If ( a-b)=(b-a) then the operation - is said to be ….
Commutative
If a-(b-c)=(a-b)-c then the operation - is said to to be…..
Associative
Brackets are used to “. “ an operation
Prioritise
When making a rough estimate of a calculation we generally “. “ whole numbers off to the nearest 10 or 100
Round
If we estimate 32657 as 33000 we are using the first two….
Significant figures
The set of negative and positive whole numbers including what is called the set of integers.
Zero (0)
When multiplying or dividing integers with like signs the answer is always…..
Positive