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" Measure. 60 seconds (sec.) 1 minute (min.) 60 minutes 1 hour (hr.) 24 hours 1 day (da.) 7 days 1 week (wk.) 365 days 1 common year (yr.) 366 days 1 leap year Years divisible by 4 and not by 100 are leap years. "
A Mental Arithmetic: Based on Analysis and Induction - Page 68
by George Washington Hull - 1896 - 140 pages
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An Elementary and Practical Arithmetic

James B. Dodd - Arithmetic - 1850 - 278 pages
...earth round its axis, and in years by the revolution of the earth around he sun. 60 seconds (sec.) make 1 minute, (min.); 60 minutes, 1 hour, (hr.); 24 hours,...days, 1 common year, (yr.); 366 days, 1 leap year ; 100 years, 1 century. A year also consists of 12 months, viz : January, February, March, April, May,...
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Arithmetic for High Schools: Containing the Elementary and the Higher ...

James B. Dodd - Arithmetic - 1859 - 368 pages
...around its axis, and in years by the revolution of the Earth around the Sun. 60 seconds (sec.) make 1 minute, min. 60 minutes .... 1 hour, hr. 24 hours...days .... 1 week, wk. 365 days 1 common year, yr. A year consists of 12 months—January, February, March, April, May, June, July, August, September,...
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The Progressive Higher Arithmetic, for Schools, Academies, and Mercantile ...

Horatio Nelson Robinson - Arithmetic - 1860 - 444 pages
...of its diyisors and multiples. TABLE. 60 seconds (sec.) make 1 minute, min. 60 minutes, " 1 hour, h. 24 hours, " 1 day, da. 7 days, " 1 week, wk. 365 days, " 1 common year, yr. 366 days, " 1 leap year, yr. 12 calendar months, " 1 year, yr. 100 years, " 1 century, C. UNIT EQUIVALENTS. min. Bee. h. 1 •=...
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The Rudiments of Written Arithmetic: Containing Slate and Black-board ...

Horatio Nelson Robinson - Arithmetic - 1866 - 200 pages
...TABLE. 60 seconds (sec.) make 1 minute .......... „ .min. 60 minutes " Ihour...... .......... h. 24 hours " 1 day, ......... .......da. 7 days " 1................ wk. 365 days " 1 common year, ...... yr. 866 days " lleapyear, .......... yr. 12 calender months " 1 year, .......... .. . .yr. 100 years "...
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The Progressive Practical Arithmetic: Containing the Theory of Numbers, in ...

Horatio Nelson Robinson, Daniel W. Fish - Arithmetic - 1868 - 390 pages
...duration, as years, days, minutes, &c. TABLE. 60 seconds (sec.) make 1 minute, min. 60 minutes " 1 hour, h. 24 hours " 1 day da. 7 days " 1 week, wk. 365 days " 1 common year,. . .yr. 366 days " 1 leap year, yr. 12 calendar months " 1 year, yr. 100 years " 1 century, C. What is the II. S. standard unit of...
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Chambers's Standard Arithmetical Exercises: (includes Parts I. to Iv. of ...

John Sturgeon Mackay - 1870 - 138 pages
...(qr.). Quarters, bushels, and pecks are used only for dry goods. MEASURE OP TIME. 60 Seconds (sec.) make 1 minute (min.). 60 Minutes „ 1 hour (hr.). 24 Hours...(wk.). 365 Days 1 common year (yr.). 366 Days 1 leap-year. The year is divided into twelve calendar months. January 31 daya. July 31 days. February...
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Common School Arithmetic on the Analytic System: With an Appendix of the ...

Shelton Palmer Sanford - Arithmetic - 1872 - 404 pages
...quarts to bushels, etc. Ant. 18bu. 3pk. Gqt ART. 179. TIME. TABLE. 60 seconds (sec.) make 1 minute, mik 60 minutes " 1 hour, hr. 24 hours " 1 day, da. 7 days...days " 1 common year, yr. 366 days " 1 leap year, yr. 100 years " 1 century, • 0. A TEAK is the length, of time occupied by the earth in making one...
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The Complete Arithmetic: Oral and Written

Daniel W. Fish - Arithmetic - 1874 - 540 pages
...TIME. 369. Time is a measured portion.of duration. 370. The Unit of measure is the mean solar day. TABLE. 60 Seconds (sec.) = 1 Minute min. 60 Minutes...24 Hours = 1 Day da. 7 Days = 1 Week wk. 365 Days, or 12 Calendar Months ( 1 Common Year 366 Days = 1 Leap Year . 100 Years = 1 Century . . yr. yr. yr....
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The Complete Arithmetic, Oral and Written: Second Part

Daniel W. Fish - Arithmetic - 1874 - 302 pages
...MEASURES OF TIME. 47. Time is the measure of duration. 48. The Unit is the mean solar day . TABLE. C0 Seconds (sec.) = 1 Minute . . min. 60 Minutes = 1...1 Day . . . da. 7 Days = 1 Week . . wk. 365 Days, or ) _ 12 Calendar Mo. ) ~ 366 Days = 1 Leap Tear . yr. 100 Years = 1 Century . . Cen. -. 1 Common...
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A Higher Arithmetic

George Payn Quackenbos - Arithmetic - 1874 - 444 pages
...hours, minutes, and seconds. TABLE. 60 seconds (sec.) make 1 minute, . . min. 60 minutes, 1 hour, . h. 24 hours, 1 day, . . . da. 7 days, 1 week, . . wk. 365 days, or 1 12 calendar months, ( > • • • j • 366 days, 1 leap-year. 100 years, 1 century, . ....
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