The Purplemath Forums

by **honest_denverco09** on Sat Apr 11, 2009 6:21 pm

I have 2 pictures :

First,

Find the rule of the first two pictures and then identify the value of the circle in the third row!

Second,

Find the missed number in this pie!

Thanks to my stupidness !

**Sponsor**

by **stapel_eliz** on Sat Apr 11, 2009 6:44 pm

My shoulder-surfing (and very annoying) twelve-year-old almost immediately suggested the following:

If it's in the top row of boxes, you add it; if it's in the bottom row of boxes, you subtract it. The circle is the answer.

by **stapel_eliz** on Sat Apr 11, 2009 7:38 pm

After I'd posted the earlier reply, you added another exercise. Since edits don't show up as new postings, I'd nearly overlooked this. :oops:

In future, please post new questions as new posts. Thank you!

Hint: Multiply across the center....

by **honest_denverco09** on Sat Apr 11, 2009 7:58 pm

I am sorry about that!

But i still don't get it, what do you mean with multiply across the center of this circle ? I mean how ?

by **stapel_eliz** on Sat Apr 11, 2009 8:11 pm

The circle has a center; it's where all the pie-wedges meet.

Look at the numbers in wedges on opposite sides of the center.

by **honest_denverco09** on Sat Apr 11, 2009 8:36 pm

As you said, for example, one of the opposite pairs is 2 and 18, or 6 and 6. So, how can i multiply them as your advise ?Actually i don't make sense with "multiply across the center" !Please explain again for me! Thanks a lot!

by **stapel_eliz** on Sat Apr 11, 2009 9:00 pm

If you're not able to multiply 12 by 3 or 6 by 6 on your own, try using a calculator! :wink:

by **honest_denverco09** on Sat Apr 11, 2009 9:12 pm

Ok. i got it. ^^!
Thank!

The Purplemath Forums

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Re: Double row of boxes, then circle / 'pie chart' puzzle