Page 30 - 新思维数学学生用书6 样章
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2.3 Common multiples and factors
Continued
Multiples of 5 are: You need to find a common multiple of 3 and 5,
5, 10, 15 so the answer must appear in both lists.
Answer:
Anna is thinking of 15.
Exercise 2.3
1 Write the numbers in the correct place on a copy of the Venn diagram.
5 14 15 18 20 21 24 29 30 60
Multiples of 2 Multiples of 3
Multiples of 5
Which numbers are common multiples of 2, 3 and 5?
Discuss your answer with your partner. Do you agree with each other?
29
