Page 19 - 新思维数学学生用书6 样章

2 Numbers and

sequences

Getting started

1 These patterns of dots show the first three square numbers.

Write the first ten square numbers.
2 Given the first term and the term-to-term rule, write down the first six terms of

each sequence.

a First term: 4, term-to-term rule: add 7
b First term: 2, term-to-term rule: add 9

3 The numbers in this sequence increase by equal amounts each time.
What are the three missing numbers?

1, , , , 13

4 Here is a set of numbers.

2 4 6 12 24 36 48
a Choose three multiples of 12 from the set.

b Choose three factors of 12 from the set.

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