Teacher Sarah stands in a studio next to a large touchscreen. She has short brown hair and wears a blue shirt with a print that reads "Homework zone."

A chart appears on the large touchscreen. The columns read "Hundreds, tens, ones, decimal, tenths, hundredths, thousandths."

A caption reads "Teacher Sarah."

Sarah says HI, TVOKIDS.
I'M TEACHER SARAH.
TODAY, WE'RE GOING
TO TALK ABOUT
DIVIDING DECIMAL NUMBERS
BY POWERS OF TEN.
THAT MEANS DIVIDING
DECIMAL NUMBERS BY TEN,
ONE-HUNDRED OR
ONE-THOUSAND.
TO DO THIS, I LIKE TO
USE A PLACE-VALUE CHART.
IT HELPS ME TO KEEP
TRACK OF MY DIGITS
SO I DON'T GET
CONFUSED.
HERE I HAVE THE NUMBER
FOUR AND FOUR-TENTHS.

She points at the number 4.4 written in the ones, decimal and tenths columns.

She says NOW, SUPPOSE I WANT TO TAKE
FOUR AND FOUR-TENTHS
AND DIVIDE IT BY
ONE-HUNDRED.
I'LL SHOW YOU A
REALLY EASY TRICK.
ALL WE HAVE TO DO IS COUNT
THE NUMBER OF ZEROS.
SO HERE, WHEN WE'RE
DIVIDING BY A HUNDRED,
I SEE THAT I
HAVE TWO ZEROS.
WHAT I CAN DO NOW IS
TAKE MY DECIMAL PLACE
AND MOVE IT TWO
PLACES TO THE LEFT.
ONE, TWO.

In the original number 4.4 she moves the decimal two places to the left and adds a 0, forming the number .044.

She says SO, FOUR AND FOUR-TENTHS
DIVIDED BY ONE HUNDRED
IS THE SAME AS SAYING
FORTY-FOUR THOUSANDTHS,
OR ZERO DECIMAL
ZERO FOUR FOUR.

She writes 0.044 and says LET'S TRY ONE MORE.
LET'S TAKE THE SAME
ORIGINAL NUMBER,
FOUR AND FOUR-TENTHS.
NOW, THIS TIME, LET'S
DIVIDE IT BY TEN.
SO, MY FIRST STEP IS TO
COUNT THE NUMBER OF ZEROS.
IN THE NUMBER TEN,
I HAVE ONE ZERO.
THAT TELLS ME THAT I
NEED TO MOVE MY DECIMAL
ONE PLACE OVER
TO THE LEFT.
TAKE MY DECIMAL,
MOVE IT ONE PLACE
OVER TO THE LEFT.

She repeats the process adding only one 0 and forms the number .44.

She says AND I AM LEFT WITH
FORTY-FOUR HUNDREDTHS.
SO THERE YOU HAVE
IT, TVOKIDS.
COUNT YOUR ZEROS
AND MOVE
THE DECIMAL PLACE
OVER TO THE LEFT.
SEE YOU NEXT TIME.