Post on 25-May-2015
transcript
Long DivisionDoes McDonald’s Sell
Cheese Burgers?
Imagine you met a lady who has never been to McDonald’s…
She might just wonder….
Does McDonald’s Sell Cheese Burgers?
Her question might sound silly…
That sounds silly!! That sounds silly!!
…but it can help us with DIVISION!
Say what?! Say what?!
That’s right! If you’re having trouble with LONG DIVISION,
all you have to remember is…
Does McDonald’s Sell Cheese Burgers?
You might be thinking, “But what does McDonald’s have to do with LONG DIVISION?”
That’s easy!!!
Does McDonald’s Sell Cheese Burgers?
I U U O R
V L B M I
I T T P N
D I R A G
E P A R
L C E D
Y T O
W
N
Each word in our question (Does McDonald’s Sell Cheese Burgers)
represents one step in LONG DIVISION!!
Does McDonald’s Sell Cheese Burgers?
I U U O R
V L B M I
I T T P N
D I R A G
E P A R
L C E D
Y T O
W
N
Does McDonald’s Sell Cheese Burgers?
So, if you can remember this…
Then you can do this…
Let’s start with an easy one:
6 78
What’s the first thing we do?
Does McDonald’s Serve Cheese Burgers?
The first thing we do is DIVIDE!
Let’s Divide:
6 781
Since 6 goes into 7 just one time, we place a one above
the 7. That was EASY!
But What’s Next?
Does McDonald’s Serve Cheese Burgers?
The next thing we do is multiply!
6 781
Let’s Multiply:
6Since 1 times 6 is 6, we place
a 6 below the 7. That was EASY!
But What’s Next?
Does McDonald’s Serve Cheese Burgers?
The next thing we do is Subtract!
6 78
1Let’s Subtract:
6
Since 7 minus 6 is 1, we place a 1 below the 6.
1
But What’s Next?
Does McDonald’s Serve Cheese Burgers?
The next thing we do is Compare!
6 78
1
Let’s Compare:
6
Compare the difference to your divisor – Is it less? Did
you divide enough?
1
7 ÷ 6 = 11 X 6 = 67 – 6 = 1
Does McDonald’s Serve Cheese Burgers?
The next thing we do is Bring
Down!
6 78
1Let’s Bring Down:
6
Since our 8 doesn’t have anything under it (like the 7 does), we Bring It Down.
1 8
And Now We Start From the
Beginning!
Does McDonald’s Serve Cheese Burgers?
The first thing we do is DIVIDE!
6 78
1Let’s Divide:
6
Since 6 goes into 18 three times, we put a 3 above the 8.
1 8
3
Does McDonald’s Serve Cheese Burgers?
The next thing we do is multiply!
6 78
1Let’s Multiply:
6
Since 3 times 6 is 18, we put an 18 below our first 18.
1 8
3
1 8
Does McDonald’s Serve Cheese Burgers?
The next thing we do is Subtract!
6 78
1
Let’s Subtract:
6
Since 18 – 18 is 0, we put a 0 under the 18.
1 8
3
1 80
When you get to a ZERO, stop and…
Does McDonald’s Serve Cheese Burgers?
Compare!
6 78
1
Let’s Compare:
6
If the difference is less than the divisor, then…
1 8
3
1 80
...You’re done with your long
division problem!!
So, just remember, if you’re having trouble with LONG DIVISION,
all you have to remember is…
Does McDonald’s Sell Cheese Burgers?