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Long Division 3677 Views


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Description:

Have plenty of scratch paper on hand before starting one of these problems. We’re not kidding when we say "long" division.

Language:
English Language

Transcript

00:00

Long division, a la Shmoop. In recent years, many species have been placed

00:09

on the endangered list. One of these species is the Underwear Fairy.

00:15

The underwear they depend on to survive has been depleted by the expanding Underwear Troll

00:20

population.

00:21

What used to be a plentiful bounty is now just a cool draft.

00:25

But wait -- the fairies have happened upon a pile of wild underwear.

00:29

Looks like there are 333 pairs of underwear to split evenly among 9 fairies.

00:35

Just how many pieces of underwear will each fairy get?

00:39

To set up the problem, draw your division box.

00:45

The dividend, or what's getting split up, goes inside the box. This is the 333 pairs

00:51

of underwear.

00:53

For the divisor, think outside the box. This is what you're dividing by.

01:05

Next decide if the first digit of the dividend can be divided by the divisor, or if 9 can

01:12

go into 3 at least once.

01:15

No?

01:16

Okay, so now see if 9 will go into the first two digits, or 33? Yes it can!

01:23

That means our quotient, or answer, will start above the second digit, or the tens place.

01:29

We need to find out "9 times what equals 33".

01:31

If you remember your times tables, you'll remember that 9 times 3 = 27, which is close

01:34

without going over.

01:35

Subtract 27 from 33 and that leaves us with a remainder of 6.

01:41

Bring down the last digit and we get 63.

01:44

Does 9 go into 63? Why yes it does. How many times?

01:49

7 times exactly in fact, which we write above the ones place.

01:53

7 times 9 is 63. 63 minus 63 is zero, so we have no remainder.

02:02

Yay, our answer is 37 pieces of underwear per fairy!

02:07

Even better, there's no remainder so the fairies won't wand-beam each other to death over the

02:11

leftover underwear.

02:13

That's a terrible way

02:33

to go.

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