What is true in multiplying in decimals

you should always line up the number, but the decimal point or you could also think as if the decimal number is just number and it doesn't have point.

ex : 4.56 = 456

now multiply each numbers from left to right and you should not care about a decimal point

ex: (4.56 times 55.5) or could think that are no decimal points, like (456 times 555)

now then you add the products and now you could care about the decimal point.

probably .5

i can on others if necessary.