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Math 5: Rounding Costs 58 Views
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Description:
"Decimals and dragon slayers"... is it a math video or an indie band? There's only one way to find out.
Transcript
- 00:13
Bob and Darnell are strapped for cash it's not much of a surprise the [Bob and Darnell walking on a street]
- 00:18
professional dragon slayers living in modern-day North Carolina there just
- 00:21
aren't that many dragons in North Carolina these days or any days sad for
- 00:26
us all but especially sad for Darnell and Bob our dragon slayers cash flow [Bob and Darnell with a white van at a gas station]
- 00:30
problem is stressing them out as they try to buy some gas as Darnell pumps the
Full Transcript
- 00:33
gas he tries to watch the meter like a hawk but the tank still ends up costing
- 00:38
19.384 dollars this totally freaks Darnell out he's only got 19 [cost displayed for the tank of gas on the station meter]
- 00:43
dollars and thirty eight cents where is he going to come up with the extra if
- 00:46
you can't pay how will he maintaine his dragon slayer honor and whoever heard of
- 00:50
[Darnell very angry at the cost of the tank of gas] a gas station charging something like nineteen point three eight four dollars
- 00:54
anyway what are people supposed to do break pennies in half Bob tells Darnell
- 00:58
that he really needs to relax all Darnell needs to do is a little rounding
- 01:01
Darnell pats his potbelly and says that he's round enough as it is Bob tells him [Darnell patting his belly]
- 01:05
that that's not what he means but Darnell should actually think about
- 01:07
eating less fried cheese when they chow down Darnell says he can't help it
- 01:11
because his life is depressing for a dragon slayer with no dragons to slay Bob [Darnell looking sad stood by the gas station pump]
- 01:14
says that they're getting off track issue with this 19.34 number is that
- 01:19
it goes all the way down to the thousands place but our money only goes
- 01:22
to the hundreds place this is where the rounding comes in it's no big deal you [pricing sign for regular unleaded fuel and a wallet with 5 dollar bills in]
- 01:25
identify the place value you want to round to and look at the digit
- 01:28
immediately to its right if the digit is four or below you should let it go and
- 01:32
if it's 5 or above you give it a shove Darnell scratches his belly still not getting [Darnell scratching his belly]
- 01:36
it getting exasperated Bob asks him if four is less than five Darnell is like
- 01:41
duh so that means is not worth caring about the 19.384 rounds to 19.38
- 01:47
if it were 19.3 85 or 19.386 though they have to round it up to
- 01:54
nineteen point three nine but it's not Darnell is beyond relieved the $19 [Darnell cheering in relief at having the correct change]
- 01:59
38 cents he has is just enough to pay for the gas so they pay up and hit the open
- 02:03
road later that day they have the luckiest break in their lives when they
- 02:06
see a dragon and nagging a local supermarket they charge into battle [a dragon breathing fire at a local supermarket]
- 02:12
and Darnell is so happy he feel like he's on fire that is
- 02:13
until he realized he actually is on fire poor Darnell [Darnell running away while on fire]
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