Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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1.
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The
number 5.562 has been graphed on the number line below. What is this number rounded to the nearest
tenth?
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2.
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Norma
bought a dictionary that contains 5,000,117 words. What is this number rounded to the nearest ten
thousand? a. | 500,000 | b. | 5,000,000 | c. | 10,000,000 | d. | 50,000,000 | | | | | | | | |
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3.
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In
1909, Miss May’s Muffins had 316 employees. Twenty years later, in 1929, the company had 790
employees. What is the difference between the number of employees the company had in 1929 and
1909? a. | about
400 | b. | about
500 | c. | about
600 | d. | about
700 | | | | | | | | |
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4.
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Yang
drove 3.9 miles from her home to a friend’s house. Then she drove 5.1 miles to a
store. About how many miles did she drive in all? a. | about 8 | b. | about 9 | c. | about 10 | d. | about 11 | | | | | | | | |
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5.
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Which
number line shows how to round 31,745 to the nearest hundred?
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6.
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In
the year 2000, there were about 168,840,000 computers in the U.S. What is this number rounded to the
nearest million? a. | 200,000,000 | c. | 169,000,000 | b. | 170,000,000 | d. | 168,800,000 | | | | |
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7.
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Which
number rounds to 30.86 when rounded to the nearest hundredth? a. | 30.9 | c. | 30.865 | b. | 30.85 | d. | 30.861 | | | | |
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8.
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The
four fifth-grade classes at Morning Star School have 25, 23, 27, and 26 students. About how many
fifth-grade students are at Morning Star School?
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9.
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Which
difference is about 10? a. | 42.5 – 16.8 | c. | 70.9 – 58.7 | b. | 33.2 –
28.4 | d. | 65.7 –
65.6 | | | | |
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10.
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John
has $10 to spend on school supplies. The following table shows the items in John’s shopping
cart. He wants to overestimate the sum to see if he has enough money. Which method should he
use?
Item | Price | Set of
markers | $2.49 | Set of
pencils | $0.99 | Set of
folders | $1.29 | Ruler | $.79 | Glue | $1.89 | Notebook | $1.09 | | |
a. | Round to the
nearest cent: 2.49 + 0.99 + 1.29 + 0.79 + 1.89 + 1.09 | b. | Round to the
nearest dollar: 2 + 1 + 1 + 1 + 2 + 1 | c. | Front-end estimation: 2 + 0 + 1 + 0 + 1 +
1 | d. | Front-end
estimation and adjust: (2 + 0 + 1 + 0 + 1 + 1) + 4 | | |
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