MATHEMATICAL TERMS IN ENGLISH (3º ESO)
Lesson one: Real numbers.
(twelve terms)
Spanish English Example
Fracción equivalente equivalent fractions and are equivalent
fractions.
Un medio A half A half equals two quarters
Tres cuartos three quarters
Común denominador common denominators The fractions and , have
common denominators.
Número decimal decimal number 23.94 is a decimal number
because it contains a
decimal
point.
Por ciento percent = 99% = 99 percent
Tres coma cuatro Three point four
Número racional rational number 3,3333..... is a rational
number because it has a
rational expression.
Aproximación Approximation= I estimate that the sum of
estimate 203 and 304 is about 500.
Raíz cuadrada square root A square root of 49 is 7
because 7 × 7 = 49.
Recta numérica number line A line for representing and
graphing numbers. Each
point on the
line corresponds to a
number.
>, < greater than, less than 3<5 Three is less than
five.
5>3 Five is greater
than three.
MATHEMATICAL TERMS IN ENGLISH (3º ESO)
Lesson two: Powers and squares.
(twelve terms)
Spanish English Example
Dígito digit Any of the symbols used to
write numbers: 0, 1, 2, 3,
4, 5, 6, 7,
8, 9.
Expresión decimal decimal expression the decimal expression of a
medium is 0.5
Expresión exponencial exponential An expression that indicates
expression that the base is to be used as a
factor the number of times
shown by the exponent.
Base Base The lower number in an
exponential expression.
Exponente Exponent The upper number in an
exponential expression; it
shows how
many times the base is to
be used as a factor.
Factor factor Any one of the numbers
multiplied in a
multiplication problem.
Paréntesis parentheses A pair of symbols used to
separate parts of an
expression so that those
parts may be evaluated
first: ( ).
Decimal exacto exact decimal An exact decimal is for
example 3.5.
Número periódico periodic number A periodic number is for
example: 3.222222.....
Segmento segment Part of a line
Cuadrado square The product of a number
and itself.
The square of 4 is 16.
Tres al cubo three cubed three cubed equals twenty
seven.
**Observación: Los países anglosajones utilizan el punto para separar la parte entera de la parte
decimal y la coma para separar los millares, millones etc. (es justo al revés que nosotros).
MATHEMATICAL TERMS IN ENGLISH (3º ESO)
Lesson tree: polynomials and equations.
(twelve terms)
Spanish English Example
Expresión algebraica Algebraic expression The algebraic expression
for the odd numbers is:
2n+1
Monomio Monomial 3x² is a monomial
Coeficiente Coefficient expression with coefficient
Parte literal Literal part 3, literal part x² and second
Grado Degree degree.
Términos en x X terms The x terms of this
expression 3x-5y+x are 3x
and x
3x³+2x-3 Three times x cubed plus
two times x minus 3
Ecuación Equation This second degree
Ecuación de segundo Second degree equation have two
grado equations solutions.
Soluciones Solutions
El valor numérico de The numerical value of The numerical value of 3x
una expresión an algebraic expression when x equal 4 is twelve.
algebraica
Identidades notables remarkable identities One of the remarkable
identities is
(x+y)²=x²+y²+2xy
MATHEMATICAL TERMS IN ENGLISH (3º ESO)
Lesson four: sequences.
(twelve terms)
Spanish English Example
Sucesión Sequence An example of sequence is
1,3,5,7,9,11,...
Primer término First term The first term of the
previous sequence is 1.
Término general General term or Rule The general term of the
previous sequence is x(n)=2n+1
Progresión aritmética Arithmetic sequence An example of arithmetic
sequence is: 2,4,6,8, ...
Diferencia Common difference The common difference of that
sequence is 2.
Progresión geométrica Geometric sequence An example of geometric
sequence is 3, 6, 12, 24, ...
Razón Common ration The common ratio of that
sequence is 2.
Suma de n términos de Sum of n terms of a We can calculate the sum
una sucesión Sequence of n terms of an arithmetic
sequence by a formula.
Sucesión divergente Convergent sequence A convergent sequence is a
sequence that get closer and
closer to a specific number
Sucesión convergente Divergent sequence A divergent sequence is a
sequence that doesn't stop
growing to infinity.
Sucesión de Fibonacci Fibonacci sequence The Fibonacci sequence
starts is like that:
1,1,2,3,5,8, … and so on....
Encontrar el patrón de Find the pattern in a We try to find pattens in the
una succesión sequence sequences to find out the
general term.
