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Mathematics 7 Online
OpenStudy (anonymous):

help

OpenStudy (anonymous):

OpenStudy (danjs):

It looks like all the straight lines add up to 15

OpenStudy (danjs):

is that one of those sodokiu things

OpenStudy (anonymous):

ya but its from school

OpenStudy (danjs):

just fill in the numbers, so that all rows, columns, and diagonals of 3, add up to 15

OpenStudy (danjs):

For example , the top row would be 6 _ 2 15 = 6 + _ + 2

OpenStudy (anonymous):

6?

OpenStudy (danjs):

7

OpenStudy (anonymous):

oh sorry was thinking of something else but am on track now

OpenStudy (danjs):

The information is given in the left to right diagonal . 6 5 4 adds to 15, so should all the rows, columns

OpenStudy (anonymous):

oh ok

OpenStudy (anonymous):

2 5 8

OpenStudy (anonymous):

is that right

OpenStudy (danjs):

right, and as a check if you are on the right track, now add the bottom completed row 8 3 4 is also 15 now too, good

OpenStudy (anonymous):

1 5 9

OpenStudy (anonymous):

8 3 4

OpenStudy (danjs):

yeah, then the far right column is 2 9 4 still good

OpenStudy (danjs):

you get it

OpenStudy (anonymous):

7 5 3 ?

OpenStudy (danjs):

yeah that is the middle column, it was already figured from finding the top row

OpenStudy (danjs):

the 7

OpenStudy (anonymous):

2 9 4 ?

OpenStudy (danjs):

if it adds to 15, it is right

OpenStudy (anonymous):

k thx @DanJS

OpenStudy (danjs):

welcome, anytime

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