Sets

Question 1

Set

Answer 1

Collection of numbers

Question 2

Symbol used to show a number is a member of a group

Answer 2

Weird looks E

Question 3

Set is shown by

Answer 3

Curly brackets {1,2,3…}

Question 4

Standard sets

Answer 4

Natural numbers
Integers
Rational numbers
Real numbers

Question 5

Natural numbers

Answer 5

All whole numbers up from 1 {1,2,3,4…..}

Shown by double N

Question 6

Integers

Answer 6

All positive and negative whole numbers including 0
{……-3,-2,-1,0,1,2,3…..}
Shown by double Z

Question 7

Rational numbers

Answer 7

Can be written as a fraction of an integer
eg. -4, 1/3, 0.25, -1/3
Shown by double Q

Question 8

Real numbers

Answer 8

All points on the number line
eg -6, -1/2, 2^1\2, 1/12, 0.125.
Shown by double R