Question

Summation of numbers 1 to 10?

Answer 1

Answer:

Step-by-step explanation:

What is the sum of integers from 1-10?

Here a simple method.Even for integers above 10.Incase we have 1-50.How do we do that?

Write out the given integers as written below

1 2 3 4 5 6 7 8 9 10

Add the first and last number--1+10=11

Cancel out the first and last which means we have a new number as the first and a new one has the last.

Next||

Add the other first and last--2+9=11

NOTE:FOR EACH FIRST AND LAST ADDED IT MUST HAVE THE SAME ANSWER ALL THROUGH.

Then add other first and last as follows

3+8=11

4+7=11

5+6=11

Now we have added all number together.

NOTE:All numbers are to be added once.

Then count how many sum do we have altogether.If you check well we have 5 which mea a we added

1+10=11

2+9=11

3+8=11

4+7=11

5+6=11.

Now here is where we get our answers,

Pick a 11 and multiply by the number of total 11's we have

I.e 11x5=55.

.:1+2+3+4+5+6+7+8+9+10=55.

Easiest method without the use of calculator ...

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Answer 2

the answer is 55

hope this helps