Homework Help: 3rd grade math

Posted by Barbara on Thursday, March 12, 2009 at 4:35pm.

In estimating- what is the counting-up method and the trade-first method?

3rd grade math - bobpursley, Thursday, March 12, 2009 at 5:48pm
counting up.

Example 432-195.
take five to make 200, then 200 more (total 205) to make 400, then add 32, total 237.

Trade-first method.
http://ouronlineschools.org/Schools/NC/Demoschool/3rdGrade/Math/Reviews/TradeFirstSubtractionMethod.htm
3rd grade math - Andrea, Thursday, March 12, 2009 at 10:57pm
I don't get a synonym for cloudy,wait,annoying,help,circle,and splash
5th Grade Math - Grace, Monday, March 23, 2009 at 7:30pm
LOSER!

Related Questions

4th grade - what is the trade first method,i know the counting up method but ...
biology 12 - what is the best method useful for estimating the populations of ...
biology 12 - what is the best method useful for estimating the populations of ...
Psy - Complate the following chart. The first column shows the name of a ...
PSY 210 - Complete the following chart. The first column shows the name of a ...
counting up method - how do you do the counting up method
PSYCHOLOGY - provide a situation when scientific method, case study method, ...
psy210 - psy 210 CheckPoint: Research Methods Research Method Description ...
Math - Estimate each quotient. Tell which method you used. Do I respond with by ...
math - What is counting up method

For Further Reading

First Name:
School Subject:
Answer: