CHAPTERS 1 – 2.5
NAME_____________________________
A. Bates
ANSWERS
Show all work.
1. Write expanded notation for 9806.
a) 9 thousands + 8 hundreds + 6 ones
b) 9 thousands + 8 hundreds + 6 tens
c) 9 thousands + 8 tens + 6 ones
d) 9 hundreds + 8 hundreds + 0 tens +6 ones
1.
D
2. Two hundred nine thousand, three
hundred fifty eight
2.
Write a word name: 209,358.
3.
B
3.
Josh owed $78 on his account. He mistakenly sent in a payment
of $87. What is the balance on his account?
4.
>
a) –$165, or $165 debt
c) –$9, or $9 debt
5.
5
6.
-32
7.
-5 , +10
8.
6,997
9.
-16
b) $9, or $9 credit
d) $11, or $11 credit
4.
Use < or > for
5.
Find the absolute value:  5 .
6.
Find   x  when x  32 .
7.
to write a true sentence.
 23
Tell which integers correspond to this situation: At 6 a.m. the
temperature was five degrees below zero. At 3 p.m. the
temperature was ten degrees above zero.
Complete the following operations.
8.
10.
2716
+ 4281
13.
9. –4 + (–12)
3 + (–11)
a) –7
11.
 28
–3 – 27
b) –33
c) –8
d) –14
12. –4 – (–15)
49, 013
- 38,554
1
10.
C
11.
-30
12.
9
13. ____10,459___
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ANSWERS
Complete the following operations.
14.
62,615
15.
97,342
16.
D
17.
negative
18.
10 R1
14.
8945
´
7
16.
Pick the best answer.
a) –19
238
´ 409
15.
b) –48
–3(–16)
c) 13
d) 48
17. What is the sign of this? Don’t work it out. (- 3)(- 2)(- 4)
19.
-7
20.
78
21.
508 R4
18.
20.
22.
23,500
23.
88 lb
19.  56  8
31¸ 3
43 3354
21.
24 12,196
22. Round 23,456 to the nearest hundred.
24.
79,600
23. Gwen weighs 142 lb. This is 54 lb more than what her daughter
weighs. How much does Gwen’s daughter weigh?
Estimate the sum by rounding to the nearest hundred. Show your
work.
24.
27,823
+ 51, 785
2
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ANSWERS
Solve.
25.
26. Write exponential notation: 6×6×6.
45 ×y = 765
25.
17
63
26.
27. Solve: 18 + x = 32.
a) 50
b) 26
27.
c) 576
D
d) 14
28. Area = 1,350 ft2
28. A rectangular driveway measures 18 ft by 75 ft. What is the area of the Perimeter = 186 ft
driveway? What is the perimeter? (Don’t forget units!)
29. 33 packs, 5 sheets
30.
29. A study packet requires 15 sheets of paper. How many packets can be
made from a 500-sheet ream of paper? How many sheets will be left
over?
31.
32.
30. Evaluate.
24
Simplify.
31.
24 - 20 ¸ 2 + 3
32 .
102 - 52 ¸ 5
3
16
17
95
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ANSWERS
33.
33. Simplify: 12 – (–11) – 4 + 6.
B
a) 3
34.
b) 25
c) 13
d) 134
-81
35.
14
36.
576
34.
30  2   3  6 2
36.
4´ {(12 - 4)×éë(5 + 83)¸ 4 - (10 - 6)ù
û}
32 + 15 ¸ 3
35.
Bonus:
B
Bonus:
5
2
Simplify: (- 1) 14 - (- 15 + 8) - 3(- 8) .
a) –11
b) –59
4
c) –87
d) 59