Mathematics
7 Online
OpenStudy (anonymous):
help
Join the QuestionCove community and study together with friends!
Sign Up
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
Join the QuestionCove community and study together with friends!
Sign Up
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
Join the QuestionCove community and study together with friends!
Sign Up
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
Join the QuestionCove community and study together with friends!
Sign Up
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
Join the QuestionCove community and study together with friends!
Sign Up
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