Sunday

December 21, 2014

December 21, 2014

Posted by **Sandy** on Wednesday, October 26, 2011 at 4:22pm.

- 4th grade math -
**Ms. Sue**, Wednesday, October 26, 2011 at 4:27pmCheck these sites.

http://www.atlantatraffic.com/KSUWebsite/?p=825

http://math-ed.com/NO/NO_2_4_reading.htm

- 4th grade math -
**TheQuestion**, Wednesday, October 26, 2011 at 6:08pmUsually used with multiplication, creating an expanded algorithm is taking a formula and "drawing it out," or making it longer (and thus more simplified) by "un-distributing" it. For example:

Expand (a+b)n.

Answer: an + bn

Why: In the problem, n should be distributed to both a and b using the Distributive Property of Multiplication.

Example #2:

Expand (2+4+9)10.

Answer: 20+40+90, or 150

Why: See above.

Hope this helps!

**Answer this Question**

**Related Questions**

4th grade math - What is an expanded algorithm? Son doesn't know and didn't ...

4th grade math - 31 X 19 in expanded algorithm

4th Grade Math - Arrays and an expanded algorithm: 23 x 17

4th grade - what is 27×19 in expanded algorithm?

4th grade - 23x17 in expanded algorithm

graham school - how,arrays and an expanded algorithm it is a 4th grade homework

arrays an expanded algorithm - I need an example to help my son like 23x17

3 rd grade math - Samantha says 1+1+1 =3 can not be writtin as a muliplication ...

Math - How do you do arrays and an expanded algorithm

math - arrays with an expanded algorithm for 31*19