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- 231
- àï3.1è Introduction to Decimal Numbers.
- äè Please write the following Decimal Numbers in words.
- â
- êêïWrite the Decimal Number, 23.496, in words.
-
-
- êè Twenty-three and four hundred ninety-six thousandths
- éS In the last chapter we looked at operations on the set of
- non-negative fractions described in the following list.
- #êêêè╚è ╔è ╩è ╦è ╠ï...
- êêêè1è 1è 1è 1è 1
-
- #êêêè╚è ╔è ╩è ╦è ╠ï...
- êêêè2è 2è 2è 2è 2
-
- #êêêè╚è ╔è ╩è ╦è ╠ï...
- êêêè3è 3è 3è 3è 3
- êêêê :
- êêêê ∙
- Each one of ç fractions can be written in decimal form by dividing
- the bottom number into the top number generating the following list.
- êêêè0.è1.è2.è3.è4.ï...
-
- êêêè0.è.5è1.è1.5ï2.ï...
- #êêêêè╪è ╪êè╪
- êêêè0.è.33ï.66ï1.è1.33 ...
- êêêêï:
- êêêêï∙
- Each one of ç Decimal Numbers can in turn be written in words.ïIn
- order to write the Decimal Number, 23.496, in words, you should complete
- the following steps:
- 1)ïFirst you should write out the Whole Number part.è"twenty-three"
- 2)ïThen write "and" in place of the decimal point.êè"and"
- 3)ïWrite the decimal part as though
- è it is a Whole Number.êêê"four hundred ninety-six"
- 4)ïFinally, name the place value of the last digit.ë "thousandths"
-
- Thus, 23.496è=ètwenty-three and four hundred ninty-six thousandths.
- 1êêèWrite 0.75 in words.
-
- ê A)ïAnd seventy-fiveêë B)ïSeventy-five tenths
-
-
- ê C)ïSeventy-five hundredthsë D)ïå
- ü
-
-
- êêè 0.75è=èSeventy-five hundredths
- Ç C
- 2êêèWrite 25.4 in words.
-
- A)ïTwenty-five and four tenthsè B)ïTwenty and fifty-four hundredths
-
-
- C)ïTwo hundred fifty-four thousandthsêêëD)ïå
- ü
-
-
- êêè 25.4è=èTwenty-five and four tenths
- Ç A
- 3êêèWrite 52.137 in words.
-
- êêA)ïFifty-two and one thirty seven
- êêB)ïFifty-two and one hundred thirty-seven thousandths
- êêC)ïFive and two hundred thirty-seven thousandths
- êêD)ïå
- ü
-
-
- ë52.137è=èFifty-two and one hundred thirty-seven thousandths
- Ç B
- 4êêèWrite 30.015 in words.
-
- êêA)ïThirty thousand and fifteen
- êêB)ïThirty and fifteen thousandths
- êêC)ïThree thousand and fifteen ten-thousandths
- êêD)ïå
- ü
-
-
- êêï30.015è=èThirty and fifteen thousandths
- Ç B
- 5êêèWrite 200.0026 in words.
-
- êêA)ïTwo hundred and twenty-six ten-thousandths
- êêB)ïTwo hundred and twenty-six thousandths
- êêC)ïTwo thousand twenty-six
- êêD)ïå
- ü
-
-
- êï200.0026è=èTwo hundred and twenty-six ten-thousandths
- Ç A
- äè Please write the following numbers in Decimal Form.
- â
-
-
- ëTwo hundred fifty-six and twenty-three thousandthsè=è256.023
- éS To write the number, two hundred fifty-six and twenty-three
- thousandths, in Decimal Form, you should complete the following steps:
-
- 1)ïFirst you should write down the Whole Number part.è "256"
- 2)ïThen locate the decimal point where "and" occurs.ë"256."
- 3)ïNext, write the decimal part as though it is a
- ëWhole Number.êêêêêë "256.23"
- 4)ïFinally, insert zeros after the decimal point
- ëso that the "3" is in the thousandths place.êè"256.023"
- 6
- êêWrite "thirty-five hundredths" in Decimal Form.
-
-
- ëA)ï.35êè B)ï.035êèC)ï3500êèD)ïå
- ü
-
-
- êêëthirty-five hundredthsè=è.35
- Ç A
- 7
- êêWrite "eighty-five thousandths" in Decimal Form.
-
-
- ëA)ï85,000ê B)ï.850êèC)ï.085êèD)ïå
- ü
-
-
- êêè eighty-five thousandthsè=è.085
- Ç C
- 8
- êëWrite "four and twelve thousandths" in Decimal Form.
-
-
- ëA)ï4,012êïB)ï4.012êïC)ï4.12êèD)ïå
- ü
-
-
- êêfour and twelve thousandthsè=è4.012
- Ç B
- 9
- êWrite "two hundred twenty-six and two hundred six thousandths"
- êin Decimal Form.
-
- ëA)ï226.206êïB)ï226,206êC)ï22.606ê D)ïå
- ü
-
-
- ïtwo hundred twenty-six and two hundred six thousandthsè=è226.206
- Ç A
- 10
- êêWrite "eighty-three and twenty-four ten-thousandths"
- in Decimal Form.
-
- ëA)ï83.24êè B)ï83.024ê C)ï83.0024êD)ïå
- ü
-
-
- êèeighty-three and twenty-four ten-thousandthsè=è83.0024
- Ç C
- äè Please round each decimal number to the given place
- êêïvalue.
- â
- êêèRoundï246.3874ïto the nearest hundredth.
-
-
- êè 246.3874 rounded to the nearest hundredth isï246.39
- éS To roundï246.3874ïto the nearest hundredth, you must first
- locate the hundredths place.
-
- êêêêï246.3874
- #êêêêêº
- Next, you look at the number one place to the right of theï"8".
-
- êêêêï246.3874
- #êêêêêº
- Since theï"7"ïis five or larger, theï"8" is rounded up toï"9".
-
- êêêêè246.39
-
- The digits to the right of the hundredths place are dropped.
- 11
- êêRoundï23.462ïto the nearest hundredth.
-
-
- êA)ï23.47êB)ï23.46êC)ï23.5êD)ïå
- ü
-
-
- êè23.462ïrounded to the nearest hundredth isï23.46
- Ç B
- 12
- êêèRoundï5.681ïto the nearest tenth.
-
-
- êA)ï5.6ê B)ï5.68ê C)ï5.7ê D)ïå
- ü
-
-
- êê 5.681ïrounded to the nearest tenth isï5.7
- Ç C
- 13
- êêèRoundï33.6842ïto the nearest thousandth.
-
-
- êA)ï33.68ë B)ï33.684ë C)ï33.685ë D)ïå
- ü
-
-
- êë33.6842ïrounded to the nearest thousandth is 33.684
- Ç B
- 14
- êêèRoundï186.9384ïto the nearest hundredth.
-
-
- êïA)ï186.94ëB)ï186.938ëC)ï186.93ëD)ïå
- ü
-
-
- êë186.9384 rounded to the nearest hundredth isï186.94
- Ç A
- 15
- êêïRoundï237.841ïto the nearest whole number.
-
-
- êïA)ï237.8êB)ï238êC)ï237êD)ïå
- ü
-
-
- êï237.841ïrounded to the nearest whole number isï238
- Ç B
-
-
-
-