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#4301 Exercises » Co-ordinates and Bearings » 2006-07-19 18:47:01

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Replies: 0

Co-ordinates and Bearings

This thread might have quite a few pictures in it to help you. In fact, 60% of the first ten questions are made up of pictures...anyway, have fun!

coord1.gif

1. Point "A" has co-ordinates ( , )

2. Point "B" has co-ordinates ( , )

For questions 3-5 you will need to copy the grid onto squared paper (or regular paper if you do not have access to any). If you can do it without the paper, then that is absolutely fine.

coord3.gif

3. Plot the points J(2,3), K(4, 7) and L(6,3). What is the name of triangle JKL?
4. Plot the points P(0, -6), Q(1, -4), R(4, -6) and S(1, -8). What is the name of the quadrilateral PQRS?
5. WXYZ is a rectangle. The coordinates of W, X and Y are (-7, 4), (-4, 6) and (0, 0) respectively. What are the coordinates of point Z?
6. Adam is walking in a NW direction. Asha is walking in the opposite direction. In which direction is Asha walking?
7. Peter is walking in a SE direction. Write this information as a 3-figure bearing.

In questions 8-10, find the 3-figure bearing of X from Y.

coord4.gif

8. ?°

coord5.gif

9. ?°

coord6.gif

10. ?°

#4302 Exercises » Basic Transformations » 2006-07-19 03:29:40

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Replies: 1

Basic Transformations

You'll find some pretty easy problems based on a co-ordinates grid here. Again, they are not too challenging - These are just to get your brain in gear for your exams.

transformations.gif

1. Which triangle is a translation of triangle ABC?
2. Which triangle is the image of triangle ABC after a reflection in the x-axis?
3. Which triangle is an enlargement of triangle ABC?
4. What is the scale factor of the enlargement?
5. Rotate triangle ABC ¼ turn clockwise around the origin. Label the new triangle A'B'C'. What are the co-ordinates for point 'C'?
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#4303 Exercises » Basic Symmetry » 2006-07-19 03:21:47

Devantè
Replies: 3

Basic Symmetry

This has pictures in it to aid you in answering these questions (well actually the questions wouldn't make sense without them...), and none of them are difficult to understand (well they are just shapes). Have fun!

Look at these shapes. Decide which shape or shapes fit each description and type the letter or letters for your answer.

symmetry.gif

1. Three lines of symmetry
2. No reflection symmetry
3. Four lines of symmetry
4. Rotation symmetry of order three
5. Rotation symmetry of order two but no reflection symmetry
6. One line of symmetry
7. Rotation symmetry of order four but no reflection symmetry
8. No rotation symmetry
9. Rotation symmetry of order two
10. Rotation symmetry of order three but no reflection symmetry
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#4304 Exercises » Basic Polygons » 2006-07-19 03:15:42

Devantè
Replies: 4

Basic Polygons

You'll find some very easy questions in here. Of course, most of them are never going to be too hard. Have fun!

1. Write down the name of a regular triangle.
2. What is the sum of the interior angles of a hexagon?
3. How many sides does a regular pentagon have?
4. Calculate the interior angle of a regular pentagon.
5. Calculate the exterior angle of a regular pentagon.
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#4305 Re: Dark Discussions at Cafe Infinity » World Cup 2006 » 2006-07-18 08:08:46

^Italy did win, yes. It was 1-1 and it went to penalties - And Italy strangely won on penalties...

Zidane, the French player did the headbutting. wink

#4309 Exercises » Basic Rounding and Estimating » 2006-07-17 19:30:05

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Replies: 4

Basic Rounding and Estimating

These are quite easy for starters. The problems in this thread shouldn't really be too challenging.

1.  The attendance at a Rugby International was given as 38379. Round off this number to the nearest thousand.
2. Round off 38379 to the nearest hundred.
3. Round off 38379 to the nearest ten.

Use a calculator to work these out, then give your answers correct to the accuracy in brackets.

4. Work out 412 ÷ 19 and give your answer to the nearest whole number.
5. Calculate 25 ÷ 4.7 to 1 decimal place
6. Calculate 4.77 x 2.4 to 2 d.p
7. What is 4.866 squared to 3 d.p. 
8. Calculate 1399 ÷ 199.99 to 2 d.p.

#4310 Exercises » Measures » 2006-07-17 19:22:18

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Replies: 1

Measure Exercises

Some of these questions are based on some of the measurements you will probably use and see everyday. The measurements used in the first ten questions are mm, cm, m, km, g, mg, cl, l, gallons, ft, miles, pints.

1. Which units would you use to describe the length of a hockey pitch - mm, cm, m, or km?
2. Which units would you use to describe the distance from Glasgow to London - mm, cm, m, or km?

In questions 3-8, convert the quantities to the given units.

3. 58km = ?m
4. 2400mg = ?g
5. 168cl = ?l
6. 25 gallons = ?l
7. 122cm = ?ft.
8. 40km = ?miles
9. The width of one cassette case is 17mm. How many cassettes will fit on a shelf of length 34cm?
10. Allens Kwikshop offers 2 litres of milk for 89p. Baker's Latestore offers 4 pints of milk for 89p. Which shop offers the best price?
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#4311 Exercises » Significant Figures » 2006-07-17 18:46:42

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Replies: 0

Basic Significant Figure Excercises

1. Round off the number 37649 to 1 s.f.
2. Round off the number 0.0073184 to 1 s.f.
3. Round off 824691 correct to 2 s.f.
4. Round off 0.0000386241 to 2 s.f.
5. Work out the answer to 974 x 586 on a calculator , and round off the answer to 3 s.f.
6. Work out the sum 23 ÷ 946 on a calculator , and round off your answer correct to 3 s.f.
7. What sum would you do in order to get a rough answer to 4671 ÷ 19.6 (to 1 s.f.)?
Use ' / ' for the divide sign.

8. Work out a rough answer for 4671 ÷ 19.6 using your answer to Q7.
9. What sum would you do to get a rough answer for 73541 x 0.008564 (to 1 s.f.)?
10. Work out a rough answer for 73541 x 0.009465 using your answer to question 9.

#4312 Exercises » Basic Negative Numbers » 2006-07-17 18:37:16

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Replies: 4

Basic Negative Number Excercises

You'll find some numbers below zero here - Negative numbers. None of them are too hard.

1. 40 metres below sea level = ?m
2. A temperature of 8 degrees below zero =
3. At 9pm, the temperature was 2°C. By midnight, the temperature had dropped to -5°C. By how many degrees had the temperature fallen?
4. The temperature at midnight was -3°C. By 8am, the temperature had risen by 6°C. What was the temperature at 8am?
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Algiers    = 16°C
Barcelona = 17°C
Berlin = 8°C
London = 5°C
Moscow = -9°C
New York = 7°C
Oslo = -5°C
Paris = 12°C
Rome = 15°C
Sydney = 23°C
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[b]5. What was the difference in temperature between Barcelona and Berlin?
6. How much higher was the temperature in Rome than the temperature in Oslo?
7. 5 + (-7) =
8. 17 - (-8) =
9. (-6) x (-3) =
10. 50 ÷ (-10) =
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#4313 Re: Exercises » About the Exercises » 2006-07-17 18:31:36

No problem. I just got a little confused when you said 'number the excercises'. smile

I'm making some more as we speak. smile

#4314 Exercises » Basic Ratio and Proportion » 2006-07-17 18:26:50

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Replies: 1

10) Ratio and Proportion Excercises

A few, easy ratio and proportion-type problems here. None of them are too tricky.

1. If three apples cost 45p, how much would five apples cost?
2. Steven buys 7 similar books for a total of £8.40. How much would he pay for just 3 books?
3. Simplify the ratio 45:20.
4. Sam is 16 years old. His sister is 24 years old. What is the ratio of Sam's age to his sister's age? Give your answer in its simplest form.
5. A map scale is 1:20000. A distance on the map is measured to be 5.6cm. What is the actual distance in real life? Give your answer in metres.
6. A recipe for vegetable curry needs 300 grams of rice, and it feeds 4 people. How much rice would be needed for 7 people?
7. £60 is to be divided between Brian and Kate in the ratio 2 : 3. How much does Kate get?

Questions 8 - 10 refer to a necklace of which you can see 2 white beads, three black beads next to those, 2 white beads next to the black beads and 3 black beads next to the 2 white beads.

8. What is the ratio of white beads to black beads, in its simplest form?
9. How many white beads would be needed to go with 24 black beads?
10. The necklace uses 75 beads altogether. How many of these are black beads?
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#4315 Exercises » Powers and Standard Index Form » 2006-07-17 08:28:57

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Replies: 3

Powers and Standard Index Form Exercises

Some more problems for fun and practice, this time involving Powers and Standard Index Form excercises - It basically revolves around that topic. Have fun! (also, please recognise the numbers here as powers - The one below simply means 'Simplify (a cubed b) x (a squared b squared)'.

1. Simplify a[sup]3[/sup]b x a[sup]2[/sup]b[sup]2[/sup]
2. Simplify p[sup]4[/sup]q[sup]2[/sup] ÷ p[sup]2[/sup]q[sup]5[/sup]
3. Simplify (p[sup]3[/sup]q[sup]3[/sup] x p[sup]2[/sup]q) ÷ p[sup]4[/sup]q[sup]3[/sup]
4. Find the value of 81 to the power of [sup]3/4[/sup]
5. Find the value of 32 to the power of [sup]6/5[/sup]
6. Work out, expressing your answers in standard form (3 x 10[sup]2[/sup])(4 x 10[sup]3[/sup])
7. Work out, expressing your answers in standard form (6 x 10[sup]6[/sup]) ÷ (8 x 10[sup]3[/sup])
8. Work out, expressing your answers in standard form (1.2 x 10[sup]5[/sup]) ÷ (4 x 10[sup]10[/sup])
9. Work out, expressing your answers in standard form (3 x 10[sup]4[/sup]) + (6 x 10[sup]3[/sup])
10. Work out, expressing your answers in standard form (1.5 x 10[sup]5[/sup]) - (8 x 10[sup]4[/sup])
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#4316 Exercises » Basic Sequences » 2006-07-17 08:17:15

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Replies: 3

Basic Sequences Exercises

Some basic sequences exercises here. Again, most of them are easy, but this is just for practice and fun.

1. Find the next two numbers in the sequence 12, 15, 18, _, _
2. Find the next two numbers in the sequence 14, 12, 10, _, _
3. Find the next two numbers in the sequence 8, 5, 2, _, _
4. Find the nth term of the sequence 5, 7, 9, 11,
5. Find the nth term of the sequence -2, 2, 6, 10,
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#4317 Exercises » Basic Percentages » 2006-07-17 07:54:20

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Replies: 3

Basic Percentages Exercises

Here you'll find quite a few percentage questions - Some of them quite easy. All in all, a good warm-up for the brain.

1. A washing machine sells for £240 after a discount of 20 % on its original price. Find the original price.
2. The price of a bicycle increases by 10 % to £198. Find the price before the increase.
3. A new car falls in value by 25 % in a year. After a year it is worth £ 9 600. Find the price of the car when it was new.
4. A pack of washing powder is advertised as '20 % extra powder'. If it contains 1.32 kg, what would the original pack contain?
5. A shop sells 300 radios in a year. If this is an increase of 50 % on sales the previous year, how many radios were sold the year before?
6. A large company says it has increased the number of people it employs by 35 % to 3240. How many people did it employ before the increase?
7. A car salesman is paid a commission on sales of 3 %. How much will he earn if he sells a car for £12950?
8. The value of a car bought for £12500 falls by 15 % in a year. What is the new value?
9. Marian earns £ 16 500 a year. If she gets a pay rise of 4 %, how much will the increase be?
10. A computer costs £ 1,200. In a year its value falls by 35 %. What is it worth after a year?
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#4318 Exercises » Basic Fractions » 2006-07-17 07:49:29

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Replies: 1

Basic Fractions Exercises

These exercises should be quite easy. Hopefully you'll find some good material in here. Be careful not to think of 1/3 as 1 divided by 3 - Think of it as a third, or one over three.

1. 2 ½ + 1 ¼ =
2. 3 [sup]1[/sup]/[sub]3[/sub] + 2 [sup]2[/sup]/[sub]3[/sub] =
3. 4 ½ + 2 [sup]2[/sup]/[sub]3[/sub] =
4. 1 [sup]2[/sup]/[sub]3[/sub] + 3 [sup]5[/sup]/[sub]8[/sub] =
5. 4 [sup]3[/sup]/[sub]5[/sub] + 2 [sup]3[/sup]/[sub]4[/sub] =
6. 5 [sup]2[/sup]/[sub]5[/sub] - 2 [sup]2[/sup]/[sub]3[/sub] =
7. 4 [sup]1[/sup]/[sub]8[/sub] - 2 [sup]5[/sup]/[sub]6[/sub] =
8. 2 ½ x 1 [sup]1[/sup]/[sub]5[/sub] =
9. 3 [sup]1[/sup]/[sub]3[/sub] x 1 [sup]3[/sup]/[sub]5[/sub] =
10. 4 [sup]4[/sup]/[sub]5[/sub] x 1 [sup]1[/sup]/[sub]9[/sub] =
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#4319 Exercises » Basic Division » 2006-07-17 06:27:35

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Replies: 2

Basic Division Exercises

In this thread, you'll find some fairly easy division questions.










#4320 Exercises » Basic Multiplication » 2006-07-17 06:17:28

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Replies: 2

Basic Multiplication Exercises

You'll find some Basic Multiplication sums in this thread. None of them are particularly taxing - Just some easy ones to start off with.











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#4321 Exercises » Basic Subtraction » 2006-07-17 04:57:31

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Replies: 1

Basic Subtraction Exercises

In Basic Subtraction you'll find problems based on subtraction that aren't particularly difficult to solve - eg. 457 - 321 or 333 - 222.











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#4322 Exercises » Basic Addition » 2006-07-17 04:49:58

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Replies: 2

Basic Addition Exercise(s)

In Basic Addition you'll find mainly numbers that aren't particularly difficult to add together, such as 257 + 623, or 182 + 98.

Exercise 1











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#4323 Re: Dark Discussions at Cafe Infinity » World Cup 2006 » 2006-07-16 19:34:35

John E. Franklin wrote:

I missed the France/Italy last game, and
I missed the 2nd place game.
Which one had this inappropriate kicking and which team did it, and what
made the player so angry??

The final is the one that had the violent stuff mainly. Basically, Marco Materazzi, Defender, ended up insulting Zinedine Zidane (now voted best man in the World Cup), midfielder. This ended in Zidane headbutting Materazzi to the chest - In which the referee did not see this. But, however, the assistant manager did, and so did one of the FIFA officials. This was reported to the referee, and Zidane was instantly sent off with a red card. The French manager clapped - Sarcastically. Zidane's career may not be ended though, as USA are thinking of buying him...but Zidane certainly is getting slower. If he were to play in the next World Cup he'd be 38!

The 3rd place game was somewhat odd - Germany and Portugal both scored no goals by half-time. Then, after half-time, Germany got themselves 3 consecutive goals...Portugal had no chance. It was the 80th minute. Luckily, Figo scored once, which proved Portugal do have a chance against the host nation.

Portugal vs Holland...you don't get many games like that. Can't remember how many yellow cards...14? 15? 16? Whatever it was, it broke the record for the most cards ever given for a match. FIFA officials suggested that the referee should get a card himself, whether it be a yellow or a red. Anyway, I remember Deco was sent off, but I can't remember the other guy who got sent off, too. The whole Holland team got yellow cards apart from the Goalkeeper, Edwin Van Der Sar. There were fights - All the subs went on and proceeded to back up their men in the fights...both these teams have always hated each other, you can't change that...also, Deco got thrown harshly to the floor at some stage of the game - And who got the red card and got sent off? Deco. The Portuguese player.

#4324 Re: Exercises » Basic Algebra » 2006-07-16 19:01:43

Great idea, MathsIsFun. One question though - Are we limited to answer only a certain amount of questions at a time? Also, do we have to wait for questions to be answered before starting new ones?

4. We use the inverse.
    8 + 2 = 10
    From this we know that 10 / x = 2
    We do the inverse again.
    10 / 2 = x
    x = 5

5. Inverse.
    5 - 7 = x
    x = -2

6. Again, the inverse.
    8 + 2 = 10
    Now we know that 5 / x = 10
    5 / 10 = x
    5 / 10 = 0.5

#4325 Puzzles and Games » Sudoku Puzzle Variants » 2006-07-16 07:36:47

Devantè
Replies: 12

Just thought I would share this. I found another site which is a lot better some time ago - If I find it again, I'll show you.

http://www.maa.org/editorial/mathgames/mathgames_09_05_05.html

I'll see if I can solve them. Maybe other people can have a crack at them?

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