Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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1.
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Which equation shows the number
of squares in the array?
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2.
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Find the product of 50 and
7.
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3.
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Michelle wrote a whole number
ending in 4 zeros. If she multiplies the number by 10, how many zeros should be in the
product?
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4.
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Complete this statement. To
find  , multiply 3 and 8. Then write
____ zeros at the
end.
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5.
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In a class, 14 students will
present their science projects. Each student gets to talk for 5 minutes. How much time is needed to
present all of the science projects?
a. | 70
minutes | c. | 210
minutes | b. | 80 minutes | d. | 19 minutes |
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6.
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In Omar’s school, there
are 8 fourth grade classrooms. Each classroom has about 27 students. Which is a reasonable estimate
of the number of fourth graders in Omar’s school?
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7.
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Find 
by using mental math.
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8.
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There are 24 hours in a day.
Kendra’s new puppy is 8 days old. Which is the best estimate of the number of hours
Kendra’s puppy has been alive?
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9.
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A shipping carton holds 42
calculators. What is a reasonable estimate of the number of calculators in a shipment of 8
cartons?
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10.
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Which of these is the closest
estimate for  ?
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11.
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To multiply  ,
Sara first multiplied  and got 750. What number should she subtract
from 750 to find the exact answer?
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12.
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Which will cost less than
$4,000?
a. | 6 rugs for $900
each | c. | 7 rugs for $700
each | b. | 8 rugs for $600 each | d. | 9 rugs for $400 each |
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13.
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Which addition sentence shows
how to use partial products to find 2 x 28?
a. | 40 + 16 =
56 | b. | 16 + 4 =
20 | c. | 32 + 2 =
34 | d. | 40 + 8 =
48 |
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14.
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Which equation shows the number
of squares in the array?
a. | 4  100 =
400 | c. | 4 + 100 =
104 | b. | 4 + 10 = 14 | d. | 4  10 =
40 |
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15.
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Find the product of 90 and
6.
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16.
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Complete this statement. To
find 9  400, multiply 9 and 4. Then write
 zeros at the end.
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17.
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For a club fundraiser Dagny is
selling boxes of candles. Dagny sold 80 boxes of candles. There are 9 candles in each box. How
many candles did she sell?
a. | 89
candles | b. | 640
candles | c. | 720
candles | d. | 800
candles |
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18.
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At Camp Rustic Branch each
camper gets 9 minutes to write an e-mail on the camp computer. There are 11 campers who want to write
an e-mail on the first day of camp. How much time is needed for all the campers to write an
e-mail?
a. | 20
minutes | c. | 109
minutes | b. | 99 minutes | d. | 297 minutes |
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19.
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Find 99 
6 by using mental math.
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20.
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A box of pens holds 144 pens.
There are 6 full boxes of pens in the school supply room. Which number sentence shows the best way to
use compatible numbers to estimate the total number of pens in the school supply
room?
a. | 6  150 =
900 | b. | 6  100 = 600 | c. | 6  200 =
1,200 | d. | 120  6 =
20 |
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21.
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Miriam can put 28 books on a
shelf. What is the best estimate of the amount of books she can put on 8
shelves?
a. | 300
books | b. | 260 books | c. | 240 books | d. | 160 books |
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22.
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Mrs. Chapman drives about 48
miles in 1 hour. If she drives at about the same speed, what is a reasonable estimate of the number
of miles she can drive in 6 hours?
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23.
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What partial products will help
you find the product 4  26?
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24.
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To multiply 3 
408, Tim first multiplied 3  400 and got 1,200. What number should he add
to 1,200 to get the exact answer?
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25.
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Which can you buy for less than
$300?
a. | 6 games for $45
each | c. | 7 games for $52
each | b. | 8 games for $41 each | d. | 9 games for $40 each |
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