## 2. So You Think You can Add!

August 15, 2012# Challenge 2:

**The Great Maths Scavenger Hunt**

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### Students must complete 2 challenges @ 1**¼** points each: Minimum of 2, Maximum of 5

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**2. ****So You Think You can Add!:**

### * How many round-cut 8 carat diamonds will cover top of an A4 sheet?

### * How many human hairs would cover the back of your (Werewolf) hand including your fingers assuming 200 hairs per square cm or 1,290 hairs per square inch.

### * A set of scales in Stone. How heavy is a stone?

### * Measure the length of your kiss in cm or inches. Show picture.

### * Bring a slide rule. Show how to calculate 100 x 10.

### * A pair of 40 denier tights. What is a denier?

### * A t-shirt with π on the front

### * How many golf balls would go around the equator? Diameter of golf ball= 43 mm

### * Picture of a human Pentagon

### * Arithmetic Progression of Stamps worth: 5c, 10c, 15c, 20c, 25 c and 30c.

### * Picture of you calculating the angle of a pair of high heels using a cardboard triangle.

### * Write the mirror image of every number from 1 – 20.

### * Freeze three types of triangle into a cube of ice each.

### * Bring in 3 size 24 buttons. What is the diameter of a size 24 button?

### * Car batteries are labelled 12V but are more likely 12.6 volts. Plot a graph of % charge remaining Vs Voltage (V). You’ll find info here.

### * If you buy an $120,000 Boxter Porsche and it depreciates in value by 25% annually, how much will it be worth when it is 1, 2, 3 and 4 years old? More info here.

### * In 2012 Usain Bolt had earned $20 million up until the Olympic Games mostly through endorsements. He ran a total of 400m (100 m, 200m and 4x100m relay). How much does the fastest man on earth earn per m and, more interestingly, per second? Why is the relay faster per leg than the 100m sprint?

### * An old maths exam paper of a parent or grand parent or a school ruler with their name on it. (Must be old)

### * How many large cracked eggs would it take to fill a 50-litre rubbish bin?

### * What does 24 carat gold mean? Write 24, 18 and 12 carat gold in fractions.

### * If Usain Bolt could keep up his 100m-sprint speed, how long would it take for him to finish the marathon? How long would it take him to get to school from your place? Include map showing your route to school.

### * Draw a skateboard deck width Vs skater height graph. Info here.

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Posted in GAMES, homeworkpig, Middle School, Silly Maths Jokes, Songs, Year 7 mathspig, Year 9 Mathspig **|** Tagged Arithmetic progression, button sizes, car depreciation, diamond sizes, gold carat, HIgh Heel Angles, How hairy is a were wolf, how long is a kiss, human pentagon, Killer stiletto heels, scalene triangle, skateboard deck size, Usain Bolt marathon, were wolf hands, What does 18 carat gold mean?, what does a carat mean **|**

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