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Friday, June 1, 2012

Introductions To Subtractions


Subtraction is ...

... taking one number away from another.

 If you have 5 apples,

then subtract 2,

you will be left with 3.
This would be written:
5 - 2 = 3

Train Yourself

You get good at subtraction with practice...
... so we have developed Math Trainer - Subtraction to help get you trained!

Subtraction Table

You can "look up" answers for simple subtraction using this table:
0123456789101112
00
110
2210
33210
443210
5543210
66543210
776543210
8876543210
99876543210
10109876543210
1111109876543210
121211109876543210


Example: Find 8 - 5

  • find the row starting with "8"
  • move along till you are under the column "5"
  • and there is the number "3", so 8 - 5 = 3

Names

Other names used in subtraction are Minus, Less, Difference, Decrease, Take Away, Deduct.
The names of the numbers in a subtraction fact are:
Minuend - Subtrahend = Difference

Minuend - Subtrahend = Difference
 
Minuend: The number that is to be subtracted from.
Subtrahend: The number that is to be subtracted.
Difference: The result of subtracting one number from another.
 


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