Number Flashcards
1
Q
Natural number
A
N - Positive Whole Numbers: e.g. 1, 2, 3
2
Q
Integer
A
Z - All Whole Numbers + 0: e.g. -3, -2, -1, 0, 1, 2, 3
3
Q
Real numbers
A
R - All numbers: e.g. -3, -1.4, 0.2, 6, 7/2, β8
4
Q
Rational numbers
A
Q- Numbers that can be written in the form π/π e.g.-5, 3, 1/2, -9/4
5
Q
Irrational numbers
A
Numbers that cannot be written in the form π/π e.g. β3, β2, pi
6
Q
Prime number
A
Can only be divided by itself AND 1
7
Q
Composite numbers
A
Numbers that ARENβT prime
8
Q
Scientific notation
A
In the form Ax10βΏ where βaβ is between 1 and 10.
Eg 3400 = 3.4 x 10Β³
9
Q
Foreign exchange
A
currency = currency
Divide to get the other cutrency to one
Β£1=$1.65
divide by 1.65
10
Q
Speed, distance time
A
Distance\speed=time
Distance\time=speed
Speedxtime=distance
