Factors Prime Multiples And Square Numbers Worksheet Page 5
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15Will the number 1003 have a circle on it?
Circle Yes or No.
Yes / No
Explain how you know.
1 mark
Q8.
Chen chooses a prime number.
He multiplies it by 10 and then rounds it to the nearest hundred.
His answer is 400.
Write all the possible prime numbers Chen could have chosen.
.................................................................................
2 marks
Q9.
The rule for this sequence of numbers is ‘add 3 each time’.
1
4
7
10
13
16 …
The sequence continues in the same way.
Mary says,
‘No matter how far you go there will never be a multiple of 3 in the sequence’.
Page 5 of 15
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