 Time 60 seconds (sec.) = 1 minute (min.) 60 minutes = 1 hour (hr . ) 24 hours = 1 day (da.) 7 days = 1 week (wk.) 12 months (mo.) — 1 year (yr.) 365 days — 1 common year 366 days = 1 leap year...  Junior High School Mathematics - Page 248by George Wentworth, David Eugene Smith, Joseph Clifton Brown - 1917Full view - About this book
 | Joseph Ray - Arithmetic - 1877 - 402 pages
..." cen. Also, 7 days make 1 week, marked wk. 4 weeks " 1 month (nearly), " mon. 12 calendar months " 1 year, " yr. 365 days " 1 common year. 366 days " 1 leap year. KEVI. 1. — The exact length of the mean solar, or tropical year, is 365 days, 5 hours, 48 minutes,... | |
 | Frank H. Hall - Arithmetic - 1896 - 268 pages
...hour (h.). 24 hours = 1 day (da.). 7 days = 1 week (wk.). 28 to 31 days = 1 month (mo.) 12 months = 1 year (yr.). 365 days = 1 common year. 366 days = 1 leap year. 52 weeks and 1 day = 1 common year. 52 weeks and 2 days = 1 leap year. LINEAR MEASURE12 inches (in.)... | |
 | Frank H. Hall - Arithmetic - 1896 - 300 pages
...hour (hr.). 24 hours = 1 day (da.). 7 days = 1 week (wk.). 28 to 31 days = 1 month (mo.). 12 months = 1 year (yr.). 365 days = 1 common year. 366 days = 1 leap year. 52 wk. 1 da. = 1 common year. 62 wk. 2 da. = 1 leap year. 58. MISCELLANEOUS TABLE. 12 ones = 1 dozen.... | |
 | Frank H. Hall - Arithmetic - 1897 - 264 pages
...hour (h.). 24 hours = 1 day (da.). 7 days = 1 week (wk.). 28 to 31 days = 1 month (mo.) 12 months = 1 year (yr.). 365 days = 1 common year. 366 days = 1 leap year. 52 weeks and 1 day = 1 common year. 52 weeks and 2 days = 1 leap year. LINEAR MEASURE. 12 inches (in.)... | |
 | James Alexander McLellan, Albert Flintoft Ames - Arithmetic - 1898 - 280 pages
...1 square mile (sq. mi.) A township is 6 mi. square and contains 36 sq. mi. UNITS OF TIME Measure of Time 60 seconds (sec.) = 1 minute (min.) 60 minutes...(yr.) 365 days = 1 common year 366 days = 1 leap year MISCELLANEOUS UNITS 12 units = 1 dozen (doz.) 20 units = 1 score 24 sheets = 1 quire 20 quires = 1... | |
 | James Alexander McLellan, Albert Flintoft Ames - Arithmetic - 1898 - 280 pages
...square mile (sq. mi.) ARITHMETIC UNITS OF TIME Measure of Time 60 seconds (sec.) = 1 minute (niin.) 60 minutes = 1 hour (hr.) 24 hours = 1 day (da.) 7...(yr.) 365 days = 1 common year 366 days = 1 leap year MISCELLANEOUS UNITS 12 units = 1 dozen (doz.) 20 units = 1 score 24 sheets = 1 quire 20 quires = 1... | |
 | Frank H. Hall - Arithmetic - 1899 - 258 pages
...hour (hr. ). 24 hours = 1 day (da.). 7 days = 1 week (wk.). 28 to 31 days = 1 month (mo.). 12 months = 1 year (yr.). 365 days = 1 common year. 366 days = 1 leap year. 52 weeks and 1 day = 1 common year. 52 weeks and 2 days = 1 leap year. LINEAR MEASURE. 12 inches (in.)... | |
 | John William Hopkins - Arithmetic - 1903 - 240 pages
...day (da.) 7 days =1 week (wk.) 4 weeks =1 lunar month 30 days =1 commercial month 12 months (шо.) = 1 year (yr.) 365 days =1 common year 366 days =1 leap year ROMAN NOTATION 1 . I 10 . X 100 . С 1,000 . M 2 . II 20 . XX 200 . ce 2,000 . . MM 3 . . Ill 30 .... | |
 | George William Myers, Sarah Catherine Brooks - Arithmetic - 1903 - 424 pages
...1 day (da.) 7 days = 1 week (wk.) 30 days = 1 calendar month (mo.) 12 calendar months = 1 calendar year (yr.) 365 days = 1 common year 366 days = 1 leap year 100 years = 1 century NOTE.—One mean solar year = 365 da. 5 hr. 48 min. 46 sec. = 365\ da. (nearly).... | |
 | John William Hopkins - Arithmetic - 1903 - 240 pages
...day (da.) 7 days =1 week (wk.) 4 weeks =1 lunar mouth 30 days =1 commercial month 12 months (mo.) = l year (yr.) 365 days =1 common year 366 days =1 leap year ROMAN NOTATION 1 . 2 . 3 . 4 . 5 . . Ill . IV I II V 10 . . 20 . . 30 . . 40 . . 50 . . X XX XXX XL... | |
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