Factors Prime Multiples And Square Numbers Worksheet Page 11
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15M7.
Two numbers circled as shown:
1
An explanation which recognises that 1003 is not a multiple of 3, eg:
•
‘Because 1003 is not divisible by 3’
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‘Because 1003 is not a multiple of 3’
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‘Because 1003 is not in the 3 times table’
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‘Because I divided 1003 by 3 and there was a remainder’
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‘Because 1003 + 3 has a decimal answer’
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‘Because 1 + 0 + 0 + 3 = 4, and 4 is not a multiple of 3’
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‘Because 1003 has a digital sum of 4’
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‘Because 1002 is the nearest in the 3 times table’
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‘Because 1000 is not divisible by 3’
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‘Because 999 is divisible by 3’.
Do not award the mark if additional incorrect numbers are circled.
Accept alternative unambiguous indications, eg ticks, crosses.
No mark is awarded for circling ‘No’ alone.
Do not accept vague or arbitrary explanations, eg:
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‘Because 1003 ends in 3’
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‘Because 1003 is in the third column’
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‘Because if you keep going in 3s you will go past it’.
If ‘Yes’ is circled but a correct unambiguous explanation is given,
then award the mark.
U1
[2]
M8.
Gives only the three correct prime numbers in any order, ie:
•
37, 41, 43
2
Page 11 of 15
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