Operations and Algebraic Thinking: Generating Number and Shape Patterns from Rules (CCSS.4.OA.5)
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4th Grade Math › Operations and Algebraic Thinking: Generating Number and Shape Patterns from Rules (CCSS.4.OA.5)
Pattern rule: Add 4. Start at 4. Which number comes next? 4, 8, 12, 16, ____
17
18
19
20
Explanation
Add 4 to 16 to get 20. A feature you can see is that all numbers are multiples of 4 (4, 8, 12, 16, 20), so they are all even.
Pattern rule: Multiply by 2. Start at 3. Which statement about this pattern is true? 3, 6, 12, 24, 48, ...
The numbers go up by 3 each time.
The numbers will alternate odd and even forever.
Every number after the first is even.
The numbers will start decreasing after 48.
Explanation
Each term is double the one before. Doubling any whole number makes an even number, so after 3, all terms are even (6, 12, 24, 48, ...). They do not alternate odd/even and they do not increase by 3.