Page 15 - PlayFacto_B3
P. 15
Practice

1 Find the rule for each pattern and write the missing numbers in the .

⑴ 20 25 35

0 5 10

⑵ 16 22

1 2 4 7



1 10 2 11 3 12 4

2 Find the pattern that has 9 twice when writing the numbers with a certain

rule.

① 1, 2, 3, 4, 5, 6, 7, …
② 1, 3, 5, 7, 9, 11, 13, …
③ 1, 6, 2, 7, 3, 8, 4, …
④ 2, 4, 6, 8, 10, 12, 14, …
⑤ 1, 1, 2, 2, 4, 4, 7, 7, …

12 Workbook B-3
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