## find a quick, easy metod to compute the first 100 number, fr

Fractions, ratios, percentages, exponents, number patterns, word problems without variables, etc.
babyZ
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### find a quick, easy metod to compute the first 100 number, fr

i am stuck the question is, Find a quick, easy method to compute the first 100 number, from 1 to 100. I can`t use a calculator as a metod for this problem

Martingale
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### Re: find a quick, easy metod to compute the first 100 number, fr

i am stuck the question is, Find a quick, easy method to compute the first 100 number, from 1 to 100. I can`t use a calculator as a metod for this problem
What do you mean by 'compute the first 100 number'?

babyZ
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### Re: find a quick, easy metod to compute the first 100 number, fr

plus them all together

Martingale
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### Re: find a quick, easy metod to compute the first 100 number, fr

plus them all together

the sum of the first n numbers is given by n(n+1)/2

stapel_eliz
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In case you're not familiar wtih variables yet, see if you can find the pattern here:

1 + 100 = 101
2 + 99 = 101
3 + 98 = 101
...

How many of these pairs are there? What is their sum? Does this account for all of the numbers between 1 and 100?

babyZ
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50x101=5050
thnx