SLR10 Number Types

Question 1

What are natural numbers?

Answer 1

Numbers that you use when counting BUT includes zero AND cannot include negative numbers

Question 2

How can natural numbers be represented?

Answer 2

With a capital N

Question 3

What are whole numbers?

Answer 3

Whole numbers are negative AND positive integers which can be placed on a number line

Question 4

How do you represent whole numbers?

Answer 4

With a capital Z

Question 5

What are rational numbers?

Answer 5

Numbers that can be represented by decimals, ratios and fractions. it CAN include integer values and recurring values

Question 6

How do you represent rational numbers?

Answer 6

With a capital Q

Question 7

What are irrational numbers?

Answer 7

Numbers that cannot be represented as a fraction e.g., decimals that are endless like Pi

Question 8

How do you represent real numbers?

Answer 8

With a capital R

Question 9

What are real numbers?

Answer 9

These are BOTH rational and irrational numbers AND are use for measurement

Question 10

Example of natural number:

Answer 10

1

Question 11

Example of whole number:

Answer 11

-4

Question 12

Examples of rational numbers:

Answer 12

0.6(recurring), 5/6, 2

Question 13

Example of irrational numbers?

Answer 13

root 2

Question 14

Example of real number:

Answer 14

6 or root 7

Question 15

What are ordinal numbers?

Answer 15

numbers used to describe the position that a value appears at e.g., 1st or 2nd

Question 16

What is a set?

Answer 16

an unordered collection of data which contains each item no more than once

Question 17

What can rational numbers also be called?

Answer 17

quotients

Question 18

What is the key thing to remember about irrational numbers?

Answer 18

they have no set symbol

Question 19

How are ordinal numbers used in computing?

Answer 19

arrays (index numbers)