.
...........................................................................................................................................................................................
Trade First Subtraction Method
homepage
Everyday math methods
.
> Trade First Subtraction Method < you are here
video
More help with trade first
Subtraction - Trade First method
471 - 293 =
Homepage
This method is most commonly used in the United
States and most parents learned to subtract in a way
that is very similar to this method.

Before any subtracting can be done, you need to go
through and decide if any "trading" needs to take
place. To do this, you must begin in the ones place
and examine each place value to determine if the top
digit is smaller than the bottom digit. If it is, trading
must occur. If it isn't or is equal, no trading is
necessary. Next, move on to the tens place value
and so on.
1.  Trade in the 1's place value column, if necessary.
2. Trade in the 10's place value column, if necessary.
3. Subtract each place value.
Trade First mothed
video
Trade First Subtraction Method
Subtraction -  Trade First
Example: 71 - 46 =
Trade First - Subtraction  
Example: 311 - 77 =
trade first subtraction video
video trade first method
You need widows media player to
view these videos. If you don't have
it, down load it here. Free