Sunday

August 31, 2014

August 31, 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 -

**Related Questions**

math - Which property would allow you to use mental computation to simplify the ...

math - Write an algebraic expression that requires each of the following ...

Math - okay so i feel like a dummie for not knowing this but i need the answer ...

Math-Distributive Property - Use the distributive property to simplify: 3(m-1)-(...

Distributive property - How would I multiply these expression? 6(h-4) -3(x+8) -...

algebra mental math distributive property - find each product mentally using ...

math mental math help - i need to use mental math and the distributive property ...

math help - i need to use mental math and the distributive property to simplify...

math - if you simplify the expression 3x+4(x-2)-3x into the expression 3x+ 4x -8...

6th grade math - Why can you simplify 5(5+30) using the distributive property?...