Posts Tagged ‘maths fun’

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Trick 1: The Great MATHoudini

September 18, 2018

The Great MATHoudini

Requirements: 1 phone book, Great showmanship

Start by handing one member of the class a sealed envelope. It contains a name that you have seen in your mathematical mind.

All will be revealed at the end of the performance.

Ask one student to write a 3-digit number on the board.

Ask a second student to turn this number around and subtract the smallest number from the largest number.

Ask a third student to turn that number around and add the last two numbers.

Example: N1 = 371.

N2 = 173

N1 – N2 = N3 = 371 – 173 = 198

N4 = 891

N4 – N3 = 891 + 198 = 1089

Give a fourth student a phone book. Ask them to go to page 108 and count down 9 places on the first column and read out the name.

Now open the envelope.

Da! Da!

 

How does it work? The numbers ALWAYS add up to 1089 so you had plenty of time to check out the name in the phone book.

Source: Magic/Menatalism Tips and Tricks

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500,000 Hog Hits

April 27, 2013

Mathspig is sooooooo excited

about reaching:

5 etc hits

To celebrate 500,000 or 5×105 hog hits

 and to continue showing mathspiggies everywhere

that maths is fun

and relevant to all

Mathspig presents

The MATHEMATICAL

CABINET OF

500,000

CURIOSITIES!!!

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If you took a sample of

500,000 US teens

how many DO YOU THINK fall

asleep at school

at least once a week?

asleep

You will find amazing US teen stas here:

28% report falling asleep once a week

 500,000 x 28/100

= 140,000

Snoring to the left of you. Snoring to the right of you. You are not alone.

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happy-2nd-birthday
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What volume of coke is there in 500,000 cans?

coke shower

Coke can vol = 355 ml = 12 fl oz

500,000 x 355 = 177,500,000 ml

= 177, 500 l = 177.5 m3

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An average bath uses 150 litres water per bath.

How many bathtubs would 500,000 cans of coke fill?

177,500/150

= 1,183 baths in coke!!!

Hey mathpiggies, wanna bubble bath? You’d be tickled pink.

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In a crowd of 500,000 how many people

would have their birthday

on the same day as yours?

bd cake

There are 365 days in the year so the probability of anyone having their birthday on the same day as you (ignoring leap years) is:

1 in 365 or 1/365.

 

In a crowd of 500,000 the number of people who have a birthday on the same day as you is most likely:

500,000 x 1/365 = 1,370

That’s a lot of birthday cake!!

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4   How heavy is $500,000 dollars?

 money bag

Australia:

$ Aus

Wt Aus $1 coin = 9.0 g

If the bank gave a bank robber $500,000 in $1 coins it would weigh:

500,000 x 9.0 = 4,500,000 g

= 4,500 kg = 4.5 tonne

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UK:

UK [pound coin

.

Wt UK £1 coin = 9.5 g

500,000 x 9.5 = 4,750,000 g

= 4,750 kg = 4.75 tonne

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USA:

$ usa

Wt US $1 coin = 8.1 g

500,000 x 8.1 = 4,050,000 g

= 4,050 kg = 4.05 tonne

You will find all you need to know about the size and weight of US coins and notes here.

$500,000 in $1 notes would only weigh

11 lb or 5 kg.

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So, um, bank robbers do the maths!!!!!!!!!!!!!!!!!!

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How far would you walk in 500,000 steps?

We’ll assume you take a big step of 1m.

step

So 500,000 m = 500 km.

A comfortable walking rate is 5 km/hr.

How long would it take you to walk 500 km without a break?

500/5 = 100 hrs.

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6 049_tns6 bugatti-veyron-super-sports-480

The Bugatti Veyron Super Sport  hits a maximum speed of 267 mph (429 km/h).

How long would it take the Bugatti travelling at top speed – not including refueling time – to clock up 500,000 km?

500,000 /429  = 1165.5 hr

= 48.5 days

The speed of an average sized commercial passenger plane ≈ 500 mph 0r 800 kph or

≈ twice the speed of the Bugatti.

So it would take a passenger plane approx 24 days to travel 500,000 km.

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7 A&E

How long would it take you to count to 500,000?

kid counting

Assuming you count at the rate of 1 per second the time it would take is 500,000 seconds.

500,000/ 60 = 8333 mins = 833/60 hrs

= 13.88 hrs or 13 hrs 53 mins

Come on! You could do that mathspiggies!!!!!

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8gloom

 In a group of 500,000 US teens how many are serious cave dwellers or, to be more accurate, how many spend less than 3 hrs a week outdoors?

It is an amazing 30.1%.

500,000 x 30.1/100

= 150, 500 creatures of the gloom.

Come on you teen gloomagogs get outdoors. You need the sun. You need the Vitamin D.

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9m&ms

How many calories in 500,000 m&ms?

There are an amazing 400 million m&ms produced everyday in the US. One m&m weighs 0.7g.

And calories in 1 m&m =  3.4 cal

500,000 m&ms weigh:

500,000 x 0.7 = 350,000 g

= 350 kg

As 400 million or 8 x 500,000 m&ms are produced each day, that is 8 x350 kg or 2800 kg or 2.8 tonne.

Calories in 500,000 m&ms is:

500,000 x 3.4 = 1, 700, 000 Cal

m&m kid

As the average consumptionof chocolate in the US is 5.18 kg per year eating 500,000 m&ms would take:

ranking_of_consumption_chocolate_2007

350 kg/ 5.18 kg

= 67.6 years!!!!!!!!!!!!!!!!!!!!!!!!

You better get going!!!!!

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10ablink

Blink rates vary but the average blink rate in a laboratory setting for a human is 10 blinks per minute.

How long would it take for you to blink 500,000 times?

500,000/10 = 50,000 minutes

= 50,000/60 hrs = 833.3 hrs

= 833.3/24 = 34.7 days

= 34 days 17 hrs 17 mins

But don’t think it or you’ll go blink crazy!!!!

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Trick 1: The Great MATHoudini

November 30, 2012

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The Great MATHoudini

Requirements: 1 phone book, Great showmanship

Start by handing one member of the class a sealed envelope. It contains a name that you have seen in your mathematical mind.

All will be revealed at the end of the performance.

Ask one student to write a 3-digit number on the board.

Ask a second student to turn this number around and subtract the smallest number from the largest number.

Ask a third student to turn that number around and add the last two numbers.

Example: N1 = 371.

N2 = 173

N1 – N2 = N3 = 371 – 173 = 198

N4 = 891

N4 – N3 = 891 + 198 = 1089

Give a fourth student a phone book. Ask them to go to page 108 and count down 9 places on the first column and read out the name.

Now open the envelope.

Da! Da!

 

How does it work? The numbers ALWAYS add up to 1089 so you had plenty of time to check out the name int he phone book.

Source: Magic/Menatalism Tips and Tricks

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I’m Forever Blowing … Cubic Bubbles

July 6, 2012

Here are some Cubic Bubbles:

Mackenzie Bubble Mathspig

Mackenzie has made a Square Bubble.

Angus Bubble Mathspig

Angus has made a Cubic Bubble. Thanks Guys!!!

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Where did Mathspig learn about Cubic Bubbles?

At the the 13e Salon Culture & Jeux  Mathematique, Paris.

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This Phd student was demonstrating how to make CUBIC BUBBLES. Everyone was intrigued.

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Finally, I tracked down the supplier of the mathematical construction kit used above.

It’s called Zometool. It is absolutely brilliant.

The manufacturers describe the kit as Art and Science at play.

What you can build with this construction kit is mind-boggling. Here are Zometool Experts Erwin and Lyn.

They built this sphere in several hours the day before the expo.

You can find these German product kits on Erwin’s website @ Zometool

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Here is a video showing the Zometool and how to make a cubic bubble.

The Zometool is a little pricey although well worth the investment for a school.

But if  you want to make a cubic bubble you can construct your own cube using straws and pipe cleaners or just pipecleaners.

Mathspig and Ivy, 10, my maths consultant from next door made pipecleaner cubes (Below)and cubic bubbles

( Hint: You have to jiggle a bubble into the center of the cube). We had great fun.

We made the best cubic bubbles from the straw cube (below)


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So go on, mathspiggies, have some fun. Make some cubic bubbles.

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25. Maths the Musical!

August 3, 2011

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To promote maths students are to busk outside the staffroom or the Principals Office. They will have to work up their act in class. You can rewrite anentire musical in maths terms. Here is one song.

Hit it mathspigs.

Factorisin’

Based on the chorus of Greased Lightin’ by John Travolta

Go, Factorisin’

You’re burnin’ up the problem, yeah!

Factorisin’, go Factorisin’

Go Factorisin’

You’re coasting through the algebra

Factorisin’, go Factorisin’

You are supreme

The teachers scream

For factorisin’

Go go go go go go go go

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10 Reasons Why Maths Teachers Rock!!!!

January 4, 2011

Science Teachers can be a little creepy.

Music Teachers can get carried away.

The new foreign language teacher can be too friendly.

PE teachers expect you to enthusiastically embrace the challenge of  freezing your ass off outdoors.

Domestic Science teachers teach too many useless things like how to boil an egg or shrink a child.

Librarians get really upset when you don’t return books.

Art teachers can go too post-modern.

English teachers nag you to read books that are, get this, already out on DVD.

Drama teachers can get too carried away with the performance concept.

Some teachers really do know how to make you do your homework!

But maths teachers …

Oh YEAH Maths Teachers

we are cool, babe!

… like totally co^2l!

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Don’t Get Your Knickers in a Knot do the Maths, Babe!!!!!

July 26, 2009

 

undies article Correctionholdworld_tns  

  MATHS IN THE REAL WORLD!!!!!!

   A part of Mathspig’s mission is to show students how maths is used in the Real World, which means everywhere. 

 

  Gather round fashionistas, catwalk strutters, A-listers, party people and cool dudes…. the usual suspects. If you want work in the fashion industry you should be able to read the graph ( below). This was published in the business pages of The Age (27/7/09).

homer       

What does it mean???? 

  Have a look?? Can you guess?     

undiest  This graph represents the price of men’s undies vs women’s undies. This data is based on the Consumer Price Index.  Economists collect prices of , maybe, 200 undies, pjs and socks  across Australia and calculate the average price every three months.

 The price of men’s underwear, nightwear and socks fell 3.8% last 3 months to June 30. Whereas the price of women’s undies, nightwear and hosiery rose by 9.7%.  If you look at the graph you will see in March 1981 men and women were paying the same for undies. This is just the cost. Women probably spend more on undies because they buy more. Today woman are paying 0 .3 or 30% more for their undies, hosiery and pjs than men.

If you own a shop or fashion business you must know what’s going on. Stock up on women’s undies now!!!!! In a recession women tend to spend more on underwear than expensive dresses. Whereas men tend to keep their old undies going for a few more months…. years possibly!!!!!!  Men aren’t buying undies so the price drops. BOXERS. UNDERDAKS. SALE. SALE. SALE. Women are buying more undies so the price goes up. This is not guess work. You can see the trend in the graph.

undies graph CorrectionDon’t get your knickers in a knot… do the maths?