﻿(soft music plays)

Troy stands next to a gray chalkboard showing math signs, different coins and a colourful logo that reads "TVOKids Home Work Zone." He is in her early thirties, clean-shaven and bald. He wears a blue T-shirt and a watch.

He says HEY GUYS, IT'S
TEACHER TROY HERE WITH SOME TIPS
ON SUBTRACTION.
I KNOW SUBTRACTION IS SOMETHING
THAT USUALLY GETS PEOPLE A
LITTLE, A LITTLE WORRIED.
IT'S A LITTLE HARDER THAN
ADDITION BUT THERE'S A LOT OF
LITTLE TRICKS THAT WE CAN DO.
WE'RE GOING TO LOOK AT
SUBTRACTING A ONE DIGIT NUMBER
FROM A TWO DIGIT NUMBER AND
THERE'S GOING TO BE SOMETHING
CALLED BORROWING THAT'S
IMPORTANT TO LOOK AT.
SO WRITE DOWN 26 SUBTRACT 7.
THE FIRST PROBLEM YOU'RE GOING
TO NOTICE IS RIGHT OFF THE BAT
THAT SEVEN IS LARGER THAN SIX SO
HOW ARE YOU GOING TO TAKE SEVEN
AWAY FROM A NUMBER THAT'S
SMALLER THAN IT.
SO WHAT WE HAVE TO DO, THIS IS
WHERE WE GO IN TO BORROWING.
SO WE LOOK AT THE NUMBER 20
WHICH IS REPRESENTED BY THIS TWO
HERE.
WE TAKE THAT AND WE BORROW FROM
IT, SO WE CANCEL IT, WE TURN
THAT IN TO A TEN AND WE ADD 10
TO SIX WHICH MAKES IT 16 AND WE
CAN EASILY TAKE SEVEN FROM 16
WHICH GIVES US NINE.
AND WE HAVE THAT TEN LEFT OVER
SO WE PUT THAT TEN RIGHT DOWN
THERE SO WE KNOW THAT 26
SUBTRACT SEVEN IS 19.

He writes the operation on the board using white chalk.

He continues SO YOU'RE BORROWING FROM THE
TWO, THE TWENTY, THAT GIVES US
10.
PUT THE 10 IN FRONT OF THE SIX,
16 MINUS SEVEN EQUALS NINE.
CARRY IT DOWN, 19.
SO HOPEFULLY WITH THAT, THAT CAN
HELP YOU ALWAYS SUBTRACT USING
BORROWING.
THIS IS TEACHER TROY WITH
ANOTHER TIP ON SUBTRACTION.
HOPE THAT HELPS.