Unit 1 Secret Numbers Pattern Worksheet Page 21
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34Shrinking patterns are decreasing patterns.
➤ Maxwell’s tennis class starts with 15 balls.
They lose the same number of balls each class.
The numbers of balls are 15, 12, 9, 6, . . .
The pattern rule is:
• Start with 15 balls. Remove 3 balls each time.
Increasing patterns grow.
Decreasing patterns shrink.
➤ Chloe’s tennis class starts with 15 balls. They lose
a different number of balls each class.
The numbers of balls are 15, 14, 12, 9, . . .
The pattern rule is:
• Start with 15 balls. Remove 1 ball.
• Then, remove 1 more ball than the time before.
22
Unit 1 Lesson 6
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