Page 32 - 新思维数学活动用书6 样章
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2.3 Common multiples and factors
Tick the number that Sofia could be thinking of.
9 27 28 72
3 Find all the common factors of these numbers.
a 6 and 8
b 8 and 12
4 Complete the sentence.
Every number with a factor of 10 must also have factors of
, and .
Practice
5 Here are four labels.
Multiple of 2 Multiple of 7 Not a multiple of 2 Not a multiple of 7
Write each label in the correct place on the Carroll diagram.
28 12
56 48
63 55
35 47
6 Faisal is thinking of a number. He says, ‘My number is a multiple of 6.’
What three other numbers must Faisal’s number be a multiple of?
31
