How to subtract multi digit numbers.
First of all you need to know that addition is the opposite of subtraction.
I'll give you a link of my friend Ariana Tanimura who is doing addition if you
don't know how to do addition already.
At the end of this page you'll know how to subtract multi digit numbers too.
It is actually quite simple.
Here is an example of an easy problem.
648-415=233
or 648
-415
233 Depending on how you like to do subtraction, but
for this page I'll be teaching you how to do subtraction
the second way.
So, 648
-415
233
All you do is minus the 5 from the 8. Pretend you have 8 apples and you take away 5.
You end up with 3. Then you put that under the line all the way on the right. Then comes the 4-1. Lets
subtract with cookies now.
There is 4 cookies and you take 1 away. Now you have 3. Put the 3 under the 4 and the 1. That's how
you do simple subtraction.
Now it's time for the hard part. Carrying numbers over. Now here's a problem that you have to
carry a number over because the number you are subtracting from is smaller than the one you are
subtracting with. Does that make sense? I hope it does. I'll take you through the steps.
461 5 11 5 11
-342 > 461 > 461
119 -342 -342
9 119
As you can see Here I just did
I crossed out a simple subtraction.
tens place and
added ten to
the ones place.
that made it so
I can subtract
normally.
Here is a link to some subtraction games to help you practice your
subtraction.
Comments (11)
Anonymous said
at 9:11 pm on Oct 25, 2007
you are such a meanie michael!
using the opposite topic as i am.
shame shame.
-.-
grr.
oh well.
time for positive.
good information.
i like your page.
:]]
Anonymous said
at 12:15 pm on Oct 29, 2007
Nice huge letters .__.
Anonymous said
at 1:02 pm on Nov 5, 2007
nice page =]
but you should think
of putting more pictures
&& decorate it
a little
Anonymous said
at 1:11 pm on Nov 5, 2007
Nice info...looks a little dry...why not some pics??? ;]
Anonymous said
at 1:23 pm on Nov 5, 2007
looks great. but the numbers look weird when they're embedded in the words like that
Anonymous said
at 1:32 pm on Nov 5, 2007
yeah what stephanie said and make it a little easier to understand.
Anonymous said
at 2:33 pm on Nov 5, 2007
Umm minusing isn't a word. Change to something like *HINT* subtracting *HINT*
Anonymous said
at 2:42 pm on Nov 5, 2007
good job michael
Anonymous said
at 7:04 pm on Nov 5, 2007
u should color the title
Anonymous said
at 10:38 pm on Nov 5, 2007
nice page, it makes sense. I have to say that at the beginning ur words overlap, and near the endu have to capitalize the "I"
Anonymous said
at 10:56 pm on Nov 21, 2007
OK, more examples would be helpful. Place Value vocabulary would be appropriate. You did not finish your first example. Your second example is written completely differently from the first and therefor is hard to understand. More links please.
2 of 4 points
8 of 12 total project points
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