when multiplied by itself,

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Presentation transcript:

when multiplied by itself, What number, when multiplied by itself, is equal to 27 x 147?

p and q are two numbers each greater than zero. Find the values of p and q.

Find the sum of any three consecutive numbers. What do you notice about the total? Is this true for any three consecutive numbers? Can you prove why this is true?

http://plus.maths.org

Over the course of numbering every page in a book, a mechanical stamp printed 2,929 individual digits. How many pages does the book have? Discuss your method and reasoning with at least three other people Explain to someone, or ask someone to explain, the joke

Find the sum of four consecutive numbers. What do you notice about the total? Is this true for any four consecutive numbers? Can you explain why this is true? Discuss your method, reasoning and result with at least three other people

To complete this multiplication: Use all the digits 0 1 5 0 1 5 0 To complete this multiplication: __ __ __ x 2 = __ __ __ __

Work out the shaded area in the diagram. 10cm (the line shown just touches the inner circle)

What is the equation of the line A? Discuss your method and reasoning with someone else, be able to state all formulae used.

1 3 2 4 7 5 9 8 Make the two columns add up to the same total by swapping just two cards 1 3 2 4 7 5 9 8 Discuss your methods

There are eight coins that all look identical but only one is solid gold. The gold coin weighs slightly less than the fakes. Use the balance only twice to find the real gold coin.

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Take any prime number greater than 3. Square it and take away 1. Is the answer a multiple of 24? Try again, and again, and again. Why is that?

(you can repeat digits if you wish) Use only the digits 1 to 9 (you can repeat digits if you wish) Start with a three digit number Reverse the digits Add the numbers together 497 794 1291 Find the largest three-digit starting number that produces a total less than 1000.

to accompany your answer. Provide a proof to accompany your answer. Is n2+n+41 a prime number for all natural numbers n?

Suppose that a, b, and c are real numbers and a(b + c) = 0. What can you say is certain? (Choose just one option) a) b) c) d) a = 0 b + c = 0 b = c = 0 a = 0 or b = -c

Suppose that a, c, and d are real numbers and ac = ad. What can you say is certain? (Choose just one option) a) b) c) d) c = d c = 0 or d = 0 a = 0 or c = d a = 0 x2 = 4x If ac = ad Then, ac – ad = 0 So, a(c – d) = 0 So either, a = 0 or c – d = 0 i.e. either, a = 0 or c = -d If ac = ad Then, by cancelling by a, c = d.

Suppose that a and b are real numbers and a2 – b2 = a + b. What can you say is certain? (Choose just one option) a) b) c) d) a – b = 1 or a + b = 0 a – b = 0 or a + b = 0 a = b or a + b ≠ 0 a = b x2 = 4x If ac = ad Then, ac – ad = 0 So, a(c – d) = 0 So either, a = 0 or c – d = 0 i.e. either, a = 0 or c = -d If ac = ad Then, by cancelling by a, c = d.

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Three numbers have a total of 10 and when multiplied make 30. What are the numbers?

Three numbers have a total of 30. Two of the numbers are equal. The third number is half the size of the other two. What are the numbers?

The equation of the line shown in the diagram below is 1 α 1 What is the value of α? Bonus points for not using a calculator