17. (25 + 17)(64 − 49) =
a. 57
b. 63
c. 570
d. 630
18. 42 ÷ 6 =
a. 8
b. 7
c. 6
d. 5
19. 292 × 50 =
a. 14,600
b. 14,500
c. 10,500
d. 1,450
20. 500 × 65 =
a. 30,500
b. 32,500
c. 35,000
d. 35,500
21. 2,273 × 4 =
a. 9,092
b. 8,982
c. 8,892
d. 8,882
22. What is the value of 43,254 ÷ 8, rounded to the
nearest whole number?
a. 5,000
b. 5,400
c. 5,406
d. 5,407
23. | –9 | =
a. –9
b. –8
c. 0
d. 9
24. 703 × 365 =
a. 67,595
b. 255,695
c. 256,595
d. 263,595
25. 2,850 ÷ 190 =
a. 15
b. 16
c. 105
d. 150
26. 62,035 ÷ 5 =
a. 1,247
b. 12,470
c. 12,407
d. 13,610
27. Estimate the value of 6,302 ÷ 63.
a. 1
b. 10
c. 100
d. 1,000
28. 4,563 × 45 =
a. 205,335
b. 206,665
c. 207,305
d. 206,335
29. 12(84 – 5) – (3 ÷ 54) =
a. 786
b. 796
c. 841
d. 54,000
30. (2 + 4) × 8 =
a. 84
b. 64
c. 48
d. 32
31. (14 × 7) + 12 =
a. 98
b. 266
c. 110
d. 100
32. (667 × 2) + 133 =
a. 1,467
b. 1,307
c. 1,267
d. 1,117
Answers:
17. d. Perform the operations within the parentheses
first: 25 + 17 = 42; 64 − 49 = 15. Then
go on to multiply those answers as indicated
by the two side-by-side parentheses: 42 × 15 =
630.
18. b. The correct answer is 7.
19. a. The correct answer to this multiplication
problem is 14,600. An incorrect answer is
likely an error in computation, particularly in
not carrying digits to the next place.
20. b. The correct answer to this multiplication
problem is 32,500. A quick way to multiply
whole numbers that contain zeros is to multiply
the non-zero numbers together (in this
case 65 × 5 = 325) and then put the two zeros
back in (32,500).
21. a. The correct answer is 9,092.
22. d. 43,254 ÷ 8 is equal to 5,406.75; rounded to
the nearest whole number, this is equal to
5,407.
23. d. The bars on either side of –9 indicate “the
absolute value of –9.” The absolute value of a
number is the distance that number is away
from zero on a number line. The absolute
value of –9 is 9 because it is 9 units away from
zero. Since absolute value is a distance, it is
always positive.
24. c. The correct answer is 256,595.When multiplying
three-digit numbers, you have to be
especially careful to align numbers.
25. a. 15 is the correct answer. An incorrect
answer may represent an error in place value.
26. c. The correct answer is 12,407. If you got
answer a, you disregarded the zero in 62,035.
27. c. The answer when the two numbers are
divided is approximately 100.03, which is closest
to 100. The question can also be evaluated
using compatible numbers, such as 6,300 ÷ 63;
and the solution here is also 100.
28. a. The correct answer is 205,335.
29. a. Perform the operations in parentheses first:
84 – 5 = 79 from the first set and 3 × 54 = 162
from the second set. The expression is now
12(79) – 162.Multiply 12 times 79 to get 948,
and then subtract; 948 – 162 = 786.
30. c. Perform the operation in parentheses first:
2 + 4 = 6. (Even though this part is addition,
you do it first because it is in parentheses.)
Now multiply: 6 × 8 = 48. If you picked choice
b, you probably multiplied the numbers in
parentheses, rather than adding them.
31. c. Perform the operation in parentheses first:
14 × 7 = 98, and then add 12 to get the answer,
which is 110.
32. a. First multiply, then add. The correct answer
is 1,467.
