Multiplication can be explained as repetitive addition and makes long additions simple. Multiplication Calculator helps in calculating the product of 'integer a' and 'integer b'. Multiplication can be denoted by the symbol "X".
Any number when multiplied by 0 gives zero.Example:  $4 \times 0$
Solution: Four times zero. We can add 0 four times.
0 + 0 + 0 + 0 = 0,  which again gives us zero. 
This property hold true for all numbers. You can multiply any number with a zero and the product is always zero.

When any number is multiplied by 1 the answer is the number itself.Example: Multiply 5 by 1.
Solution:
5 times one equals five.
We can think of it as one five : 5
or five ones  : 1 + 1 + 1 + 1 + 1 = 5.

When any number is multiplied by 10,we add a zero to the right end  or shift the decimal point to right by one place. Example: Multiply 8 by 10.
Solution: $8 \times 10  = 80$.
Here you can see that when 8 is multiplied by 10 it gives us eighty. We have added a 0 to 8 to make it 80.