Elementary Math 3/1
Numbers (to ten)Edit
A number is a symbol that represents how many objects there are in a set.
A number can be written as a symbol (1, 2, 3, 4, 5, 6, 7 ...) or a word (one, two, three, four, five, six, seven ...)
1, "one" 

2, "two" 
 
3, "three" 
  
4, "four" 
   
5, "five" 
    
6, "six" 
     
7, "seven" 
      
8, "eight" 
       
9, "nine" 
        
10, "ten" 
         
Math SymbolsEdit
Plus sign (+)
+ The addition symbol tells you to combine the two numbers on either side.
2 + 2 is the same as saying "two plus two"
Minus sign ()
 The subtraction symbol tells you to take away the number on the right from the number on the left.
2  1 is the same as saying "two minus one"