ریاضیاتدوره: چهارصد واژه ضروری برای آیلتس / فصل 21
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In this video we’re going to be looking at words connected with maths with mathematics.
And here are your seven words constant.
Fraction median mean theorum.
And your first word is constant constant a constant is a thing or a value that always stays the same
it never changes.
So for example the speed of light is a constant It never changes.
So for example the constants of nature are certain numbers that describe the laws of physics.
Two significant constants have been found in a number of research studies.
The most widely known constant is the speed of light.
So you can have a constant of something.
A fundamental constant.
A basic constant a universal constant.
Mustn’t a mathematical constant.
And his eunuchs were deduct deduct.
When you deduct an amount from a total you subtract it from the total you take it away from the total.
So for example the company deducted this payment from his compensation.
Up to 5 percent of marks will be deducted for spelling mistakes.
Taxes will be automatically deducted at the end of the month.
So you can deduct from.
Did up from a salary for example.
You can have tax deductions automatically deducted.
And deduct as a verb so deducts deducting deducted and deduction is the noun.
Some synonym subtract the move withdraw and your next one is integer.
An integer is an exact whole number is a whole number such as 1 7 24.
Five hundred seventy three million four hundred sixty three thousand two hundred seventy eight is a
whole number as opposed to a number with fractions or decimal.
So for example prime numbers are positive integers that can only be divided by themselves and 1.
They asked patients to score the degree of discomfort on a zero to six integer scale.
Choose an integer between 1 and 9.
So you can choose an integer.
Can have a positive integer and negative integer and then and an integer scale.
So integer integers is the plural of course and some synonyms whole number digit.
And when you don’t have a whole number when you don’t have an integer you often have a fraction.
So fraction is part of a whole number and also suggests part of a thing such as a cake fraction of a
So for example only a fraction of the work was completed on time.
A quarter or one over four is a fraction.
Multiply the fraction by a whole number.
So you can have a fraction of something a small fraction a tiny fraction and you can represent a fraction.
With a picture the hat.
Some synonyms for Fraction portion chunk.
And your next word is median median.
The median value.
Of a set of numbers is the middle number when they are arranged in order.
So if you have the numbers 2 3 6 9 and 10.
The median is 6.
It’s the middle in a range of numbers which is in order.
For example the median sentence for hard drugs offences increase from 150 days in 1982.
Two hundred forty in 1986.
The median price for new homes has slipped thing as a good thing.
And the median age for retirement has increased to 67.
So we talk about median income median age median price median number.
A common collocations and some synonyms for median sensual middle average.
Is another word for average.
I mean is a number.
But is the average of a set of numbers so for example if you have the numbers 1 3 4 8 9 9 if you add
those numbers up you get 25.
And there were five numbers there Seadoo 25 divided by five.
And the answer is five.
So the mean.
Of those numbers is 5.
Where was the median.
Of those five numbers is four.
For example take 120 values and calculate the mean.
The mean score for 16 year olds is 87 percent.
What is the mean age of entrance into the army.
We talk about means school mean average mean age.
The mean concentration of something.
Some synonyms for mean average is the only one really that you could use average.
Finally seal them.
By the way of them a theorem is a statement in mathematics or in logic.
That can be proved to be true by reasoning.
So for example.
This was the central mathematical theorem underpinning his entire series.
The theorem is hard to prove.
It can take years of effort to prove some theorems.
You can have a mathematical theorem and he often talk about proving a theorem you prove a theorem.
And some synonyms.
So very Your seven maths words constant deduct integer fraction median mean and theorem.
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