Saturday

February 28, 2015

February 28, 2015

Posted by **Ashtyn** on Tuesday, September 9, 2008 at 4:00pm.

- Math -
**Ms. Sue**, Tuesday, September 9, 2008 at 4:44pmMental math is doing simple math problems in your head. For instance, to estimate 49 + 53, you need to round to 50 + 50, which equals about 100.

You can use mental math to estimate the product of two numbers -- 19 times 21. Round to 20 * 20 = about 400.

Another form of mental math is to listen to the teacher give a math problem with several steps, and then give the answer. Example: 1/2 of 10 + 6 - 2 = ?

- Math -
**undrakh**, Wednesday, September 10, 2008 at 9:16am50+50=100

20 times 20=400

- Math -
**undrakh**, Wednesday, September 10, 2008 at 10:14am50+50=100

20*20=400

- Math -
**Sahana**, Saturday, October 11, 2008 at 12:37pmMental Math is practically doing math in your head. That's why the word mental meaning "mind" is in Mental Math.

**Answer this Question**

**Related Questions**

4th grade Math - What is an expression that can be used to find 4 x 275 using ...

4th grade - explain how you can find the difference 120-70 using mental math. ...

4th grade math - In helping my 4th grade grandson last night with his math, he ...

4th grade - what are two examples of condensation

english - - Computers - English - Foreign Languages - Health - Home Economics - ...

Math - There are twice as many girls as boys in the 4th grade classes at Joe's ...

4th grade - examples of the Characteristic of living things?

mental health - give two examples of negative feedback and two examples of ...

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

4th grade Math Help - hello, can someone please help with the below math ...