Wednesday, February 15, 2012

Division (mathematics)

From Wikipedia, the free encyclopedia
20 \div 4=5
In mathematics, especially in elementary arithmetic, division (÷) is an arithmetic operation. Specifically, if c times b equals a, written:
c \times b = a\,
where b is not zero, then a divided by b equals c, written:
\frac ab = c
For instance,
\frac 63 = 2
since
2 \times 3 = 6\,.

Subtraction

Subtraction is ...

... taking one number away from another.
If you have 5 apples
and you subtract 2,
you will be left with 3.
This would be written:
5 - 2 = 3


ADDITION
When you add two numbers together yo

u find how many you have in all.
  0+0=0  0+1=1  0+2=2  0+3=3  0+4=4  0+5=5
  1+0=1  1+1=2  1+2=3  1+3=4  1+4=5  1+5=6
  2+0=2  2+1=3  2+2=4  2+3=5  2+4=6  2+5=7
  3+0=3  3+1=4  3+2=5  3+3=6  3+4=7  3+5=8
  4+0=4  4+1=5  4+2=6  4+3=7  4+4=8  4+5=9
  5+0=5  5+1=6  5+2=7  5+3=8  5+4=9  5+5=10
  6+0=6  6+1=7  6+2=8  6+3=9  6+4=10
  7+0=7  7+1=8  7+2=9  7+3=10
  8+0=8  8+1=9  8+2=10
  9+0=9  9+1=10
10+0=10

5 + 3 = 8
 
 
 
MULTIPLICATION 
 

  ZEROS and ONES - Teach the ZERO and ONE fact families. (Click on the pictures for more information)

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