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Write-up


Title

Row Sum

Problem Statement
In the following arrangement of numbers, investigate the sum of all the numbers in a row. State your rule. Then use the rule to find the sum of the numbers in the 30th row.

 

 

 

 

 1

 

 

 

 

 

 

 

 3

 

 5

 

 

 

 

 

 7

 

 9

 

 11

 

 

 

 13

 

 15

 

 17

 

 19

 

 21

 

 23

 

 25

 

 27

 

 29

 

 

Plans to Solve/Investigate the Problem

I plan to set up a table showing the row number and the sum. Hopefully, this will lead me to a pattern.

 

Investigation/Exploration of the Problem

Row

Sum

1

1

2

8

3

27

4

64

5

125

 

In looking at the numbers in the sum column, I noticed that these numbers were cubes. The first row is 1^3, the second row is 2^3 and so on. Therefore the 30th row would be 30^3.


Dottie Mitcham

 

 

U Important Note: You should compose your write-up targeting an audience in mind rather than just the instructor for the course.

                                   You are creating a page to publish it on the web.

 

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