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This module is from Fundamentals of Mathematics by Denny Burzynski and Wade Ellis, Jr. This module is a proficiency exam to the chapter "Decimals." Each problem is accompanied with a reference link pointing back to the module that discusses the type of problem demonstrated in the question. The problems in this exam are accompanied by solutions.

Proficiency exam

( [link] ) The decimal digit that appears three places to the right of the decimal point is in the position.

thousandth

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( [link] ) Write, using words, 15.036.

fifteen and thirty-six thousandths

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( [link] ) Write eighty-one and twelve hundredths using digits. 81.12

81.12

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( [link] ) Write three thousand seventeen millionths using digits.

0.003017

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( [link] ) Convert 0.78 to a fraction. Reduce.

39 50 size 12{ { {"39"} over {"50"} } } {}

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( [link] ) Convert 0.875 to a fraction. Reduce.

7 8 size 12{ { {7} over {8} } } {}

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( [link] ) Round 4.8063 to the nearest tenth.

4.8

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( [link] ) Round 187.51 to the nearest hundred.

200

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( [link] ) Round 0.0652 to the nearest hundredth.

0.07

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For problems 10-20, perform each operation.

( [link] ) 15 . 026 + 5 . 971 size 12{"15" "." "026 "+" 5" "." "971"} {}

20.997

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( [link] ) 72 . 15 26 . 585 size 12{"72" "." "15" - "26" "." "585"} {}

45.565

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( [link] ) 16 . 2 4 . 8 size 12{"16" "." 2 cdot 4 "." 8} {}

77.76

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( [link] ) 10 , 000 0 . 016 size 12{"10","000" cdot 0 "." "016"} {}

16

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( [link] ) 44 . 64 ÷ 18 . 6 size 12{"44" "." "64" div "18" "." 6} {}

2.4

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( [link] ) 0 . 21387 ÷ 0 . 19 size 12{0 "." "21387" div 0 "." "19"} {}

1.1256

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( [link] ) 0 . 27 ¯ 3 11 size 12{0 "." {overline {"27"}} - { {3} over {"11"} } } {}

0

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( [link] ) Convert 6 2 11 size 12{6 { {2} over {"11"} } } {} to a decimal.

6 . 18 ¯ size 12{6 "." {overline {"18"}} } {}

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( [link] ) Convert 0 . 5 9 16  size 12{0 "." 5 { {9} over {"16"} } } {} to a decimal.

0.055625

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( [link] ) 3 1 8 + 2 . 325 size 12{3 { {1} over {8} } +2 "." "325"} {}

5.45

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( [link] ) 3 8 × 0 . 5625 size 12{ { {3} over {8} } times 0 "." "5625"} {}

27 128 size 12{ { {"27"} over {"128"} } } {} or 0.2109375

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Source:  OpenStax, Fundamentals of mathematics. OpenStax CNX. Aug 18, 2010 Download for free at http://cnx.org/content/col10615/1.4
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