Find the Counting Pattern in a Sequence

Step 1 of 4 · What's a counting pattern?

A counting pattern is when each number jumps by the SAME amount.

Look at the jumps. If every jump is the same, you've found the pattern!

Step 2 of 4 · Going UP

3, 6, 9, 12, ?

Find the jump: subtract any number from the one after it.

6 − 3 = 3

9 − 6 = 3

12 − 9 = 3

Pattern: +3 → Next = 12 + 3 = 15

Step 3 of 4 · Going DOWN

50, 45, 40, 35, ?

When the numbers get smaller, the pattern is subtract.

50 − 45 = 5 (going down by 5)

45 − 40 = 5

40 − 35 = 5

Pattern: −5 → Next = 35 − 5 = 30

Step 4 of 4 · Your turn

What's the next number?

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Nice work!

You found the patterns.