It's not really different. In both cases you are taking advantage of the commutative and associative properties to find calculations which are easy, such as 4x25=100, or 7+13=20.
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To start with, the identity element of multiplication is 1, that of addition is 0.
Multiplication and addition are different mathematical operations with different rules. What is required for addition is not necessarily required for multiplication.
I need help with that. I happen to have that question now in my Math lesson :( HELP!!!
Multiplication is repeated adding. Addition is a number with another number combined for a total.
Multiplication by an integer is the same as repeated addition.