Símbolos matemáticos

Mathematical symbols

 + plus  ou  and
- minus  ou  take away
× times  ou  (is) multiplied by
÷ (is) divided by  ou  over
= equals  ou  is equal to  ou  is
is approximately equal to
is not equal to  ou  does not equal to
<  is less than  ou  is smaller than
>  is more than  ou  is greater than
is less than or equal to  ou  is smaller than or equal to
is more than or equal to  ou  is greater than or equal to
% per cent  ou  percent
( ) round brackets
[ ] square brackets
{ } curly braces
< > angle brackets
± plus or minus  ou  more or less
(the) square root of  ou  the root of
the integral of
° degree
' minute
" second
r radius
d diameter
loge logarithm to the base e
32 (three) squared
43 (four) cubed
54 (five) to the power of (four)
620 (six) to the power of (twenty)

Como falar os cálculos

Spoken Calculation

Apresentamos a seguir as maneiras mais comuns de falar/ditar um cálculo em inglês:
 2 + 2 = 4  Two and two is/are four. (informal)
 Two plus two equals/is four. (formal)
 7 - 4 = 3  Four from seven is/leaves three. (informal)
 Seven take away four is/leaves three. (informal)
 Seven minus four equals/is three. (formal)
 3 x 4 = 12   Three fours are twelve. (informal)
 Three times four is twelve. (informal)
 Three multiplied by four equals/is twelve (formal)
 9 ÷ 3 = 3  Three(s) into nine goes three (times). (informal)
 Nine divided by three equals/is three (formal)