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Practice
Name
6-11
Problem Solving:
Look for a Pattern
Find the missing numbers. Describe the pattern.
__
21 ​
​ 
​ 11
  ​, __
​ 16  ​,   
1. _​ 18 ​, _​ 68 ​, __
8 8 8
,
__
26  ​ ​ __
31
36 __
41
​ __
8 , 8  ​ , ​ 8  ​ , ​ 8  ​
Add _​ 58 ​
2. ​ _14 ​, _​ 12 ​, 1, 2 , 4 , 8 , 16 , 32, 64
3. 1.1, 1.1, 2.2, 6.6, 26.4 , 132 , 792 , 5,544 Multiply by 2
9​ _14 ​ , 7​ _12 ​ , 5​ _34 ​ , 4 , 2​ _14 ​, _​ 12 ​
_
__
1
1   , __
1   , ___
1   ​ 
​ 
5. 27, 9, 3, 1, _​ 13 ​,  ​​ 
,
9
27  ​​ 
81  ​​ 
243
Subtract 1​ _34 ​
Multiply by _​ 13 ​or
divide by 3
Add 2, add 4,
add 6, etc.
1
Multiply by 1, then
by 2, then by 3, etc.
4. 14​ _12 ​, 12​ _34 ​, 11,
6. 3, 5, 9, 15, 23 , 33 , 45 , 59 , 75
7. Number Sense In the figure, the sum of each row
forms a pattern. What is the sum of the seventh row? 2 2
3 3 3
44 4 4
55 5 55
8. Which figure completes this pattern?
49
A
B
C
D
9. Writing to Explain How can you find the answer to exercise 7
without finding the sum of the numbers in a row?
Sample answer: You can square the number
of the row: row 2 5 22 or 4, row 3 5 32 or 9,
row 7 5 72 or 49, and so on.
P 6•11
Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. 6
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