? + 500 = 1000 its 500 i know but how to calculate this in a calculator, so calculator says 500 and when we do ? + 700 = 1000 it says 300 ty

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? + 500 = 1000
its 500 i know but how to calculate this in a calculator, so calculator says 500
and when we do ? + 700 = 1000 it says 300

ty

Guest Sep 12, 2016

NoName · Answer 1 · 2016-09-12T01:54:32

do 1000-number= into your calculator

? + 500 = 1000 its 500 i know but how to calculate this in a calculator, so calculator says 500 and when we do ? + 700 = 1000 it says 300 ​ty