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Basic Sciences - Arithmetic

Study terms related to averages, fractions, basic operations, percentages, powers, roots, and classifications of numbers.

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Words Related to Basic Sciences
decimal
decimal
[substantiv]

(mathematics) a number less than one, called a fraction, that is represented as a period followed by the number of tenths, hundredths, etc.

zecimal, număr zecimal

zecimal, număr zecimal

Ex: In mathematics, decimals are a way to represent fractions or portions of a whole using a decimal point. 
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fraction
fraction
[substantiv]

a number obtained by dividing one integer or rational number by another, typically written in the form a/b

fracție, fracție ordinară

fracție, fracție ordinară

Ex: One-half (1/2) is a simple fraction. 
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numerator
numerator
[substantiv]

Fractional number above the line

numărător, numărul de deasupra liniei

numărător, numărul de deasupra liniei

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addition
addition
[substantiv]

the calculation of the total of two or more numbers added together

adunare, sumă

adunare, sumă

Ex: Addition is the process of combining two or more numbers to get a total. 
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subtraction
subtraction
[substantiv]

the mathematical process of finding the difference between two numbers, quantities, or expressions

scădere, subtraere

scădere, subtraere

Ex: In subtraction, 15 minus 7 equals 8. 
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multiplication
multiplication
[substantiv]

the process or action of adding a number to itself a specific number of times

înmulțire

înmulțire

Ex: The teacher explained that multiplication can be represented using the "×" symbol. 
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division
division
[substantiv]

the process of calculating how many times a number can contain another number

diviziune, împărțire

diviziune, împărțire

Ex: In division, the number being divided is called the dividend. 
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divisor
divisor
[substantiv]

(mathematics) the number that divides another number in a division problem

divizor, număr divizor

divizor, număr divizor

Ex: A divisor is a number that divides another number evenly without leaving a remainder. 
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denominator
denominator
[substantiv]

the number below the line in a fraction that shows how many parts the numerator divides into

numitor, divizor

numitor, divizor

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common denominator
common denominator
[substantiv]

(mathematics) a number divisible by all the numbers that are below the line in a set of fractions

numitor comun, comun numitor

numitor comun, comun numitor

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minus
minus
[substantiv]

the sign - in mathematics, used to indicate subtraction or a negative number

minus, semnul minus

minus, semnul minus

Ex: In algebra, the minus is used to denote the opposite or negative of a number or variable. 
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times
times
[prepoziție]

used to multiply a number by another

ori, înmulțit cu

ori, înmulțit cu

Ex: Three times four equals twelve. 
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plus
plus
[substantiv]

the sign + in mathematics, used to indicate addition or a positive number

plus, semnul plus

plus, semnul plus

Ex: In arithmetic, the plus is used to combine numbers or quantities. 
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sum
sum
[substantiv]

the whole amount of numbers added together

sumă, total

sumă, total

Ex: The sum of 5, 6, and 7 is 18. 
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percentage
percentage
[substantiv]

a number or amount expressed as a fraction of 100

procentaj

procentaj

Ex: The percentage of students who passed the exam increased significantly this year. 
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factorial
factorial
[substantiv]

the product of all positive whole numbers from 1 to a given number

factorial, factorial

factorial, factorial

Ex: The factorial of 5 is calculated as 5!=5×4×3×2×1=120. 
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power
power
[substantiv]

(mathematics) the exponent in an expression, indicating how many times a base is multiplied by itself

putere

putere

Ex: In the expression 3^4, the power is 4. 
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root
root
[substantiv]

a value that, when multiplied by itself a specified number of times, results in the given number

rădăcină, radical

rădăcină, radical

Ex: The square root of 16 is 4. 
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square
square
[substantiv]

the second exponent of any given number produced when multiplied by itself

pătrat, puterea a doua

pătrat, puterea a doua

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cube
cube
[substantiv]

the result of multiplying a number by itself three times

cub, puterea a treia

cub, puterea a treia

Ex: The cube of two is eight. 
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prime number
prime number
[substantiv]

a number greater than 1 with only two devisors which can be itself or 1

număr prim

număr prim

Ex: 7 is a prime number because its only divisors are 1 and 7. 
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rational number
rational number
[substantiv]

a number that can be written as a fraction, where both the top and bottom are whole numbers, and the bottom is not zero

număr rațional, fracție rațională

număr rațional, fracție rațională

Ex: 3/4 is a rational number because it can be written as a fraction of two integers. 
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irrational number
irrational number
[substantiv]

a number incapable of being expressed as a ratio of two integers

număr irațional, număr incomensurabil

număr irațional, număr incomensurabil

Ex: The square root of 2 is an irrational number. 
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natural number
natural number
[substantiv]

(mathematics) any positive whole number starting from 1 and counting upward, like 1, 2, 3, 4, and so on

Ex: The set of natural numbers begins with 1 and never ends. 
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whole number
whole number
[substantiv]

any positive number without fractions or decimals, including zero

număr întreg, număr natural

număr întreg, număr natural

Ex: The numbers 0, 1, 2, 3, and so on are all whole numbers. 
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integer
integer
[substantiv]

any number without fractions or decimals, including positive numbers, negative numbers, and zero

număr întreg

număr întreg

Ex: The numbers -3, 0, and 7 are all integers. 
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real number
real number
[substantiv]

any number that can be found on the number line, including both positive and negative numbers, zero, and fractions

număr real, real

număr real, real

Ex: The number 5 is a real number because it can be located on the number line. 
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to average

to find the sum of a set of numbers and then divide by the total number of values in the set

a calcula media, a face media

a calcula media, a face media

Ex: The teacher averaged the students' test scores to determine their overall performance in the class. 
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mean
mean
[substantiv]

(mathematics) the average value of a set of quantities calculated by adding them, and dividing them by the total number of the quantities

medie, medie aritmetică

medie, medie aritmetică

Ex: To find the mean of 4, 6, and 8, add them together and divide by 3. 
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even number
even number
[substantiv]

(mathematics) any integer that can be divided by 2 without leaving a remainder

Ex: The numbers 2, 4, 6, and 8 are all even numbers. 
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odd number
odd number
[substantiv]

(mathematics) any integer that cannot be divided by 2 without leaving a remainder of 1

Ex: The numbers 1, 3, 5, and 7 are all odd numbers. 
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