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Think of a fast way to add numbers from 1 to 100.
1+2+3+4+5+6+7+8+9+10+.........+95+96+97+98+99+100=
Q1. What is the final sum?
Q2. Explain your method. (In the Solution field)
Solutions:
Janey from Canada
Grade: 6 Age: 10
Solution:
Q1: 5050
First I added a 0 to the beginning of the line of numbers, then
I noticed that the opposite sides of the numberline equal 100 (eg
0+100, 1+99, 2+98 etc)I knew that before you get to the middle "50"
there will be 50 hundreds, so then I add 50 to 5000 and get 5050
About me:
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Eddie from U.S.A
Grade: 3 Age: 8
Solution:
Q1: 5050
Q2: Answer in the explain category
You add 100 and 1 and 99 + 2 and so on and each one equals 101 and
their are 50 pairs so 101 + 101 50 times equals 5050 .
About me: I am now getting into playing and less smarter
but I don't want to be a rocket scientist when I grow up I want
to be a piano violen composer .
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Zach from Willow Hill PA USA
Grade: 5 Age: 10
Solution:
Q1: 5,050
We added 99 and 1, 98 and so on until we got to 50 but can't double
50. So we came out with we came out with 4 thousands one 950 and
one 100 We then added all the numbers to get 5,050.
About me: Klinton is in 5th grade with his 2 best friends.
They are smart and the one's that helped him to answer this problem.
Myles likes to go to sim theme park.com and visit other people's
parks. Zach is a sporty guy and has a great teacher. That teacher
is Miss Miley We are all friends
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Sam from Pittsburgh PA
Grade: 4 Age: 9
Solution:
Q1: 5050
1+99,2+98,3+97...... would equal 100. If you do that to 49,you would
get 49 one hundreds. Then you would have a 50 and a 100 left. Then
49 times 100+50+100 equals 5050.
About me: About me I loooove cars I especialy like sports
cars like Lamborghini Diabio SV. Also I like reading very much
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Vickshaana from Canada
Grade: 3 Age: 8
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Mubina from USA
Grade: 2 Age: 7
Solution:
Q1: 5050
Simple, In numbers 1 to 49 add numbers 99 to 51. All pairs will
add up to 100.There are 49 such pairs. Than add numbers 100 and
50 to your total of pairs to get your final answer.
About me: I am in grade 2 and I love solving math puzzles.
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