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Quiz question suggestions: Numbers

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Quiz-question-suggestions about Numbers

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Some sums

- What is 5 times 7? [35]
- If you add up all the numbers from 1 to 20 consecutively, what do you get? [210]
- What is 23 + 124 [147]
- What is the arithmetic mean of 4,6 and 8? [6]
- What is 117 divided by 9? [13]

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Types of numbers

- Name the smallest ten prime numbers [2, 3, 5, 7, 11, 13, 17, 19, 23 and 29]
- Is 3.2 an integer or a real number? [real]
- What is a binary number? [one that's made entirely of 0's and 1's]
- What's the name of the numbering system which is used in everyday life? [decimal - also called base 10]
- Write down the number 13 in base 2 [1101]
- What is the only number that can't be represented in Roman numerals? [Zero ie 0]

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Special numbers

- Write down pi (pronounced "pie") to three decimal places [3.142 - all digits must be correct]
- What is special about pi? [It is the the ratio of the circumference of a circle to its diameter]
- If a pizza that has radius "z" and height "a", what is its volume? [ Pi × (z + z) × a ]
- Is zero and even number or an odd number? [even]
- What is the Golden Ratio? [1.618]
- How is the Golden Ratio used? [It is used as the ratio between two lengths to create aesthetically pleasing designs and art works]
- What is Leonardo da Vinci's famous painting which used the Golden Ratio? [the Mona Lisa]
- What is the value of Pythagoras' constant? [Square root of 2, ie or 1.41... ]

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Number trivia

- What are some other names for the number zero? [nought, naught, nil, zilch and zip]
- What is a googol? [1 followed by one hundred zeros]
- According to the dictionary, what are the three purposes of numbers? [counting, labelling, and measuring]

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