EXPLORER SHEET
Think · Explain
Discover the pattern rule
Fill in the missing number and explain how the sequence changes.
Name __________________________ Date __________________
Question 1
2, 4, 6, □
How much is added each time?
Question 2
3, 6, 9, □
Find the difference.
Question 3
2, 4, 8, □
Look for doubling.
Question 4
20, 15, 10, □
How do the numbers decrease?
Question 5
1, 4, 7, □
Find the rule before answering.
Question 6
5, 10, 20, □
Explain the rule in your own words.
Show answer guide for parents
1. 8 (add 2) · 2. 12 (add 3) · 3. 16 (multiply by 2) · 4. 5 (subtract 5) · 5. 10 (add 3) · 6. 40 (multiply by 2)
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Sample worksheet created for the MathBone website · For practising thinking and discussion