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The beauty of Mathematics lies on the four basic arithmetic operations:-
- Addition ( + )
- Subtraction ( - )
- Multiplication ( x )
- Division (÷)
ADDITION
Generally, + ( Read as "PLUS " ) symbol is used from ancient times. The addition is written using the PLUS "+" between the terms; that is, symbolically. The result is expressed with equals " = " symbols.
Addition can be learned as follows:-
- BY ADDING SAME NUMBERS ONE (1)
0 + 1 = 1 is read as (" zero plus one equals ONE")
What about 1 + 1 = ??? ( Answer is always 2)
2 + 1 = 3 is read as (" Two plus one equals THREE")
3 + 1 = 4 is read as (" Three plus one equals FOUR")
4 + 1 = 5 is read as (" Four plus one equals FIVE")
5 + 1 = 6 is read as (" Five plus one equals SIX")
6 + 1 = 7 is read as (" Six plus one equals SEVEN")
...
- BY ADDING SAME NUMBERS TWO (2)
0 + 2 = 2 read as (" zero plus two equals TWO")
1 + 2 = 3 = 2 + 1 is read as (" one plus two equals THREE")
2 + 2 = 4 read as (" Two plus two equals FOUR")
3 + 2 = 5 read as (" Three plus two equals FIVE")
4 + 2 = 6 read as (" Four plus two equals SIX")
5 + 2 = 7 read as(" Five plus two equals SEVEN")
- BY ADDING SAME NUMBERS ZERO ( 0)
0 + 0 = 0 read as (" zero plus ZERO equals ZERO")
1 + 0 = 1 read as (" one plus ZERO equals ONE")
2 + 0 = 2 read as(" Two plus ZERO equals TWO")
3 + 0 = 3 read as(" Three plus ZERO equals THREE")
4 + 0 = 4 read as(" Four plus ZERO equals FOUR")
5 + 0 = 5 read as(" Five plus ZERO equals FIVE")
6 + 0 = 6 read as (" Six plus ZERO equals SIX")
...
Since the addition of zero in any numbers, results are similar to the number so ZERO is known as ADDITIVE IDENTITY.
- BY ADDING DIFFERENT NUMBERS
1+ 2 = 3 is read as (" ONE plus two equals THREE")
4 + 3 = 7 is read as (" FOUR plus three equals SEVEN")
3 + 5 = 8 is read as (" THREE plus five equals EIGHT")
7 + 2 = 9 is read as (" SEVEN plus two equals NINE")
5 + 6 = 11 is read as (" FIVE plus six equals ELEVEN")
6 + 6 = 12 is read as (" SIX plus six equals TWELVE")
...
The numbers or the objects ( Like Pencils, Pens, Fruits, etc ) to be added in general addition are collectively referred to as the terms, the addends, or the summands.
Method of addition
Standard algorithm (Procedure) for adding any multidigit number is to arrange (align) the addends (Numbers to be added) vertically (In initial Stage) and add the columns starting from ones column on the right, such as;
14
+ 23
____
37
____
NOTE:-
In above procedure, if sum of the column exceeds by nine then the extra digit is " transferred " into the just next column. The transferred digit is popularly called "carried" and the method is known as addition by carry.
1
47
+16
____
63
____
