Grade 4 math · A.2 · Extend the Pattern
Shrinking number patterns
Each pattern subtracts the same amount every time.
See worked examples
81, 75, 69, 63, … Write the next three numbers and the rule.
Answer: Next three: 57, 51, 45; Rule: Start at 81; subtract 6 each time
83, 77, 71, 65, … Write the next three numbers and the rule.
Answer: Next three: 59, 53, 47; Rule: Start at 83; subtract 6 each time
67, 59, 51, 43, … Write the next three numbers and the rule.
Answer: Next three: 35, 27, 19; Rule: Start at 67; subtract 8 each time
Tip: Each pattern subtracts the same amount every time.
Curriculum
Common Core: 4.OA.C.5
On paper: this skill is in the printable pack Grade 4 Common Core Math: Patterns and Algebraic Thinking, with an answer key.
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