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September 19, 2014

September 19, 2014

Posted by **danny** on Thursday, October 4, 2007 at 7:21pm.

- math -
**Ms. Sue**, Thursday, October 4, 2007 at 7:23pmRound the numbers so that they are easy to do you your head.

- math -
**danny**, Thursday, October 4, 2007 at 7:29pmexsample for danny 25(-99) what is the answer thanks

- math -
**Gina**, Thursday, October 4, 2007 at 7:49pmWhat she is trying to say it, change the numbers into easier number that you can multipy in your head.

Change -99 to -100

Then the question would be 25(-100)

which is equal to -2500

but you added on a -25

so now you you have to add on a positive 25;

-2500+25=-2475

That should be the right answer.

Try doing the other one on your own.

- math -

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