What is the relationship between addition and multiplication?

Answer 1

The multiplication of two numbers, x and y, is equivalent to

x*y = z, which is the same as adding x to itself y-1 times

x + x ... + x = z

For example,

11 x 5 = 55, which is the same as adding 11 four times to 11

11 + 11 + 11 + 11 + 11 = 55