How could you explain the operation symbols for addition (+) and multiplication (x).

Refer below for the explanation.

Step-by-step explanation:

Addition (+) symbol tells that you have to join the numbers in order to make a sinhle number for ex,

2+2=4.

Whereas multiply (*) refers that you have to add those number how many times for ex,

2*2=4.

So 2 have been join 2 times. So that becomes 4.