6th Grade Math Textbook, Progress

13. Evaluate 2a^3
    5 b, when a3 and b5. 18.Which does notname an integer?

Explain how you solved the problem. Show all your work.

23. Dana spends half of her money on a new book. She then spends
    half of the money she has left on lunch. Then Dana buys a bus pass
    with half of the remaining money. After these three purchases, Dana
    has $2.25 left. How much money did she have to begin with?


24. Choose the scientific notation of 53,000. 19.Add.
    a. 5.3 104
    ^13 ^26
    b. 5.3 105
    c. 53  104
    d. 53  105

a. 
 7

b. 29

c. 79

d. 235

a. 
 39

b. 
 13

c. 13

d. 39

15. Add.
    
    18 
    3
    20. Solve.

a. 21 y(9
4.28)^18

b. 15

c. 
 15

d. 
 21

a. y12.72

b. y13.28

c. y22.72

d. not given

16. Simplify:
    6 ^25  4 ^12  1 ^35 

21.Simplify:

a. 11 
 10 (
 6 
7)
 2

b. 11 ^12 

c. 12 ^12 

d. not given

a. 46

b. 16

c. 
 16

d. 
 46

17. A chef used 2^34 lb of strawberries, 1^12 lb of
    grapes, and 3^58 lb of bananas. How many
    pounds of fruit did the chef use?
    22. The temperature at noon was 6 ̊F.
    It dropped 8 degrees. What is the
    temperature now?

a. 6  194 lb b. 6 ^78 lb

c. 7 ^18 lb d. 7 ^78 lb

a. 
14 ̊F b.
2 ̊F

c. 2 ̊F d.14 ̊F

a. ^63 

b. 0

c.

^12 

d. 
 14

8206-2_247-248 1/9/06 7:44 PM Page 248