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practice questions

39. Number pyramid

Number pyramid - complete the number sequence in the bottom row.

This is an example of a look and say sequence.

Example 1: work out 2nd line:

First line is: 3, i.e first line has one (3).

Therefore, 1 3

Example 2: work out 3rd line:

Second line is: 1 3, i.e second line has one (1), and one (3).

Therefore, 1 1 1 3

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