Homework Help: math

Posted by Colin on Tuesday, August 31, 2010 at 5:02pm.

we have a problem that my parents cant help with.
846*2=(...+40+...)*2=(800 over ...+...over2+6 over...)=(400+...+3)...=...

...means blank space for a number. Can you help with this problem, so that I can figure out the rest of the problems.Thanks

math - Reiny, Tuesday, August 31, 2010 at 5:24pm
from what I can tell you are using * for division (over).
Usually / is used for division and * is used for multiplication.

So I will interpret as follows ...
846/2=(...+40+...)/2=(800 over ...+...over2+6 over...)=(400+...+3)...=...

846/2=(800+40+6)/2
=(800 over 2+40 over 2+6 over 2)
=(400+20+3)
=423
math - drwls, Tuesday, August 31, 2010 at 5:25pm
846*2=(800+40+6)*2
=(800*2 +40*2 +6*2
= 1600 + 80 + 12 = 1692

I don't know why the word "over" appears.
It shouldn't.

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