OK, so WHY does this work?
Let's write the last problem as a fraction:
Can we multiply this fraction by 1 and not change its value? Yep!
How about if we multiply by a magic 1?
So, just moving both decimals to the right
is the same as multiplying by a magic 1!
Here's another one:
Divide 7.5 by .25
Set it up...
Hey, there aren't even any decimals left in this one!
Go for it:
Always remember what division means and think about your answers!
This problem means:
many .25's are there in
There are 30.
Think about it! Does this answer make sense?