6th Grade Math Textbook, Progress

20. Laura wrote a 3-digit number. She
    doubled it, added 150, divided by
    100, and added 6. Her final result
    was 10. What number did Laura
    write?

Use a strategy or strategies you

have learned.

19. Javier received a paycheck on Friday.
    From the paycheck he bought a CD
    for $12.95 and a book for $8.65. Then
    Macy paid Javier the $4.00 she owed
    him. Javier now has $48.60. How
    much was his paycheck?

Add or subtract. Estimate to help you.

1. 
   1
   7
   2
   
   
   ^1
   2

3

4


 2. 
^5

6


 
^1

5


 3. 2 
^1

5


 4 
^3

5


 4. 9 
^5

7


 8 
^2

7

5. 8
   
   3
   5
   ^6
   

1

3 
 6.^5 

5

7 
^4 7.^4 

3

8 
 ^1 

1

7 

8. 1
   
   1
   2
   ^2
   

1

3 
 ^1 

5

6 
 9.^12 ^1 

1

8 
 10.^15 
 1

9

0 
^14 

1

3 

Compute. Use the addition properties when possible.

11. 2
    
    4
    5
     (1
    

1

3 
 ^1 

1

3 
) 12. (

1

4 
 ^5 

3

8 
)^3 

3

4 
 13.^2 

1

2 
 ^4 ^1 

1

4 

Evaluate each expression for the given values.

14. 2
    
    5
    6
    
    n, when n 1
    ^1
    2
    
    15. 4
    ^5
    8
    
    c 2
    ^1
    8
    
    , when c 1
    ^2
    5
    
    

Solve and check.

16. a
    ^14
    
    ^12
    17. t  1
    ^12
     3
    ^12
    18.n
    ^38
    
    156
    

Solve the problems and explain your methods.

21.Eduardo wrote a fraction problem: He chose a fraction or a mixed number,

added 


1

4 
, and subtracted 2

1

2 
. In the same pattern, Eduardo got these numbers:

, 8


5

8 
, 6

1

8 
, 6

3

8 
, 3

7

8 
, ,

What are the sixth and seventh numbers in this sequence?

With what number did Eduardo start?

???

Explain how you solved the problem.

Show all your work.

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