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+ - ± x 3 0. Essential vocabulary for maths. ÷ ∞ ≤ () 2. + - ± ÷ ∞ ≤ () …. You know what they mean – but do you know how to say them?. This mini-module presents common ways of saying twenty essential mathematical signs and symbols .

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Presentation Transcript

+ - ± x30

Essential vocabulary

for maths

÷ ∞ ≤ () 2

+ - ± ÷ ∞ ≤() …

You know what they mean

– but do you know how to say them?

This mini-module presents common ways of saying twenty essential mathematical signs and symbols.

We look at 4 groups of symbols

Operators

+ - x ÷ ±

Equalities and inequalities

= ≠  ≥ > ≤ <

Miscellaneous

0 . ()  

Powers

If you think you already know how to say them go to slide 32 and check the summary

Operators

+ - x ÷ ±

3 + 8

three plus eight

+

a plus sign

Operators

+- x ÷ ±

7 - 2

seven minus two

Alternatives: seven subtract two

seven take away two

-

a minus sign

a subtraction sign

Operators

+ - x ÷ ±

5 x 10

five times ten

Alternative: five multiplied by ten

x

a multiplication sign

a times sign

Operators

+ - x ÷ ±

3 ÷ 8

three divided by eight

÷

a division sign

Operators

+ - x ÷ ±

3 ± 8

three plus or minus eight

±

a plus or minus sign

Question

±

So how would you say ?

Question

±

So how would you say ?

Equalities and inequalities

=≠  ≥ > ≤ <

x= 8

x equals eight

Alternative: x is equal to 8

=

an equality sign

an equals sign

Equalities and inequalities

=≠  ≥ > ≤ <

y ≠ 4x

y not equal to four x

Alternatives: y is not equal to four x

y does not equal four x

an inequality sign

Equalities and inequalities

=≠ ≥ > ≤ <

y 2.5

y approximately equals 2.5

Alternative: y is approximately equal to four x

an approximate equality sign

Equalities and inequalities

=≠ ≥ > ≤ <

x ≥0

xgreater than or equal to zero

Alternative: x is greater than or equal to zero

an inequality sign

a greater than or equal to sign

Equalities and inequalities

=≠ ≥ > ≤ <

x ≤0

x less than or equal to zero

Alternative: x is less than or equal to zero

an inequality sign

a less than or equal to sign

Question

So how would you say > ?

Question

So how would you say > ?

Question

So how would you say > ?

and < ?

> and < are strict inequality signs

Question

So how would you say > ?

and < ?

> and < are strict inequality signs

Miscellaneous

0. ()  

0

zero

Alternatives: oh

nought

Miscellaneous

0 . ()  

6.8

six point eight

.

a decimal point

Miscellaneous

0 . () 

( )

brackets

Miscellaneous

0 . ()  

roottwo

the square root of four x plus two y

a root sign

a square root sign

Miscellaneous

0 . ()  

infinity

Powers

x squared

Powers

x cubed

Powers

x to the four

Alternatives: x to the fourth

x to the power four

Quiz

Can you match the words to the symbols?

approximately equals

less than or equal to

plus or minus

not equal to

greater than

divided by

equals

minus

times

plus

Quiz

divided by

greater than

equals

minus

times

approximately equals

not equal to

plus

plus or minus

less than or equal to

Quiz

Can you match the words to the symbols?

x to the four

x squared

point two

brackets

infinity

root two

x cubed

zero

Quiz

point two

x cubed

zero

root two

x to the four

x squared

infinity

brackets