- 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.
- 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
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
- 8
3
5 ^6
1
3 6.^5
5
7 ^4 7.^4
3
8 ^1
1
7
- 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.
- 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.
- 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.
- 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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