Starting at 0 we can count up in 3s like this:
0 3 6 9 12 15 18 21 ...
Example
When we count up in 3s, what comes after 24?
18 21 24 27
Answer
27
Example
When we count up in 3s, what comes before 24?
18 21 24 27 30
Answer
21
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This activity contains 10 questions
