Use the rules for multiplication by powers of 10 to calculate 3 * 100

More explaining on the multiplication by powers of 10, examples would be great!

3 * 100 = 300

the easiest way to do it is just add the same amount of zero's to the number you multiplied with. for example

3 * 10000 if you would just take out the zero's

it would look like this. 3 * 1

the answer of course would be 3 then you can put the zero's back in the answer (30000)

at least that's how I understood it

3 * 100 =

3 * 1 (00) =

-->

-->

(00)

3 * 1 (00) = 3

3 * 100 = 300