🧮 | Math | Terms

Question 1

Natural numbers

Answer 1

Counting numbers: 1, 2, 3, 4, 5…

𝙣𝙤𝙩 0 𝙤𝙧 𝙣𝙚𝙜𝙖𝙩𝙞𝙫𝙚 𝙣𝙪𝙢𝙗𝙚𝙧𝙨

Question 2

Whole numbers

Answer 2

All natural numbers, and 0

Question 3

Integers

Answer 3

All whole numbers, and negative numbers

Question 4

Rational numbers

Answer 4

All integers, and fractions and decimals

Question 5

Irrational numbers

Answer 5

Numbers that don’t have a pattern, like 𝜋

Question 6

Real numbers

Answer 6

All rational and irrational numbers

Question 7

Symbol for Natural numbers

Answer 7

N

Question 8

Symbol for Irrational numbers

Answer 8

P

Question 9

Symbol for Rational numbers

Answer 9

Q

Question 10

Symbol for Integers

Answer 10

Z

Question 11

Symbol for Whole numbers

Answer 11

W

Question 12

Simple interest formula

Answer 12

New amount = starting amount × interest rate × time

Question 13

Compound interest formula

Answer 13

New amount

= starting amount × (rate written as a decimal)ʸᵉᵃʳˢ

Question 14

Percentage profit

Answer 14

(Proft ÷ Cost price) × 100

Question 15

Profit formula

Answer 15

Profit = Selling price - Cost price

Question 16

Volume of a sphere

Answer 16

4/3𝝅r³

Question 17

Surface area of a sphere

Answer 17

4𝝅r²

Question 18

Volume of a hemisphere

Answer 18

⅔𝝅r³

Question 19

Surface area of a hemisphere

Answer 19

3𝝅r²

Question 20

Volume of a cone

Answer 20

⅓𝝅r²h

Question 21

Surface area of a cone

Answer 21

𝝅rl + 𝝅r²

Question 22

Volume of a cylinder

Answer 22

𝝅r²h

Question 23

Surface area of a cylinder

Answer 23

2𝝅r² + h(2𝝅r)