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Mathematics 8 Online
OpenStudy (anonymous):

Please someone help me

OpenStudy (anonymous):

OpenStudy (anonymous):

which number should replace the question mark on the left?

OpenStudy (anonymous):

number is sum of opposite numbers.

OpenStudy (anonymous):

26?

OpenStudy (anonymous):

8+9=?

OpenStudy (anonymous):

17

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

you can see all the numbers are sum of numbers in vertically opposite space

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