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Intermediate November 2018 Unit 1 Q1

WJECIntermediateCurrent spec5 marksProperties of NumbersRounding

1. Consider the following list of numbers:

4   25   27   36   49   64   90   125

(a) Using only the numbers in the list above, write down
(i) the three cube numbers, [2]

…………………… ,   ……………………   and   ……………………

(ii) a number that is both a square number and a multiple of 9, [1]
(iii) a number that is a factor of 81. [1]
(b) Using only two numbers from the list, fill in the spaces in the following statement: [1]

‘Dividing …………………… by …………………… and then rounding the answer to the nearest 10, gives an answer of 30.’

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