Namaste!

There are four twos: 2, 2, 2, 2. To teach multiplication to little children, should they be written 4x2 ,or 2x 4?

Does the expression 5x10 mean 'five times ten' , or 'ten times five' ? Which number is being multiplied and which number is multiplier (the number of times) and the multiplication symbol x is used, as in 5x10?

Thanks a lot.