hey there it's Kaeleigh and this lesson is on dividing decimals let's get started
when we're dividing decimals the first thing we do is take our expression and
write it in standard form so seven point two divided by one point two in standard
form looks like one point two goes into seven point two the second step is we
were going to move our decimal place over on our divisor until this becomes a
whole number meaning it's not a decimal anymore so in this case we need to move
it over one place but we have to do the same thing for our dividend so we take
our point we're moving it over one because that's what moved it over here
and I'm gonna take this decimal point and I'm gonna put it right up here and
that's my placeholder so I know that my answer is and have a decimal point when
I'm dividing into the two so now it says 12 goes into 72 how many times now if
you know your facts families for twelve you know that 12 times 6 is 72 so that
means that know that 12 goes into 72 six times and since my decimal place is
there that was a zero 12 times 6 is 72 when I subtract that I get a zero I
bring down my other zero 12 goes into 0 zero time so my answer is 6 right there
nice work let's try another one so if this one again my first step is to
rewrite this expression in standard form so I go one point five goes into six
point six how many times so now my second step I'm going to move that
decimal place so that my divisor becomes a whole numbers now that's a 15 I have
to at the same distance over here so that
becomes 66 I'm gonna put my decimal up on the top so now I'm dividing 66 by 15
so how many times does 15 going to 66 well I know 15 goes into 60 four times
so I'm going to put a 4 up here 4 times 15 is 60 I do my subtraction I get a 6
down here I have a zero there I can bring that down and now I'm gonna say
how many times does 15 going to 60 well I just did that one here so that's also
a 4 4 times 15 is 60 I get a zero there and then I know 15 goes into 0 zero
times four my answer is four point four which is right there nice work let's do
one more together and then you get to try them on your own all right so this
last one what's that first step write it in standard form so zero point
two goes into four point six how many times let's make it easy on us we're
gonna make these whole numbers I'm moving my decimal place over one so I
have to move it over one here as well make my little marker up here how many
times just to go into 46 I like that much better so we know 2 goes into 4 2
times 2 times 2 is 4 I subtract that I get to see I'm bringing my six down 2
goes into 6 3 times 3 times 2 is 6 subtracting that I get a 0 2 goes into 0
zero times so my answer is 23 right there so now you kind of get the hang of
it there the first thing we do is we write it in standard form make it easy
on us second thing we do is we move that
decimal over on our divisor until this becomes all
number so that means the last thing you see is the decimal point and if you have
to move it over one time on the divisor you move it over one time on the
dividend but if you had to move it over two times on the divisor say it was over
here and I had to move it two times over then over here I'd have to move it two
times over and now I'd be dividing into four hundred and sixty so make sure you
move both the decimals on your divisor and your dividend and then you go ahead
and divide like normal great work so keep practicing practicing this by
playing the online games and doing the quizzes and remember to always be clever