Education.com
Try
Brainzy
Try
Plus
Black Friday sale on now! Save 50% on PLUS and Brainzy with coupon BLACKFRI. Learn More
MiaMia
MiaMia asks:
Q:

I need help helping my daughter with math.

Help  My daught came home with math homework......What is Trade-first method and counting-up method in finding ballpark  estimates.     Thank you  
In Topics: Helping my child with math
> 60 days ago

|
graham
graham writes:
The Trade first (I learned it as 'borrowing') method and counting-up generally refers to methods of subtraction. This site does a pretty good job of explaining them:<br />
<br />
http://math.nyu.edu/~braams/links/em-arith.html<br />
<br />
They are not usually used for estimating but for finding exact solutions to subtraction problems.<br />
<br />
Hope this helps.<br />
> 60 days ago

Did you find this answer useful?
2
yes
1
no
lololori
lololori writes:
I need help to my daughter came home and she had math homework of ballpark estimates and she forgot what the counting up method was.
> 60 days ago

Did you find this answer useful?
0
yes
0
no
Answer this question