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TIME 60 seconds (sec.) = 1 minute (min.) 60 minutes =1 hour (hr.) 24...
A Grammar Shcool Arithmetic - Page 192
by George Albert Wentworth - 1886 - 372 pages

## The Complete Arithmetic, Oral and Written: Second Part

Daniel W. Fish - Arithmetic - 1874 - 300 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 Hour . . . hr. 24 Hours = 1 Day . . . da. 7 Days = 1 Week . . wk. 365 Days, or ) _ 12 Calendar Mo. ) ~ 366 Days = 1 Leap Tear . yr....

## The High School Arithmetic: Containig All the Matter Usually Presented in a ...

Philotus Dean - Arithmetic - 1874 - 472 pages
...divided and arranged as in the following TABLE. Irregular scale of values. 60 seconds, (sec.) make 1 minute, min. 60 minutes, " 1 hour, hr. 24 hours, " 1 day, da. 7 days, " 1 week, wk. 12 calendar months, " 1 year, yr. 365 days, (or 52 wk. 1 da.) " 1 common...

## Arithmetical Problems, Oral and Written: With Numerous Tables of Money ...

Daniel W. Fish - Arithmetic - 1875 - 290 pages
...MEASURES OF TIME. 47. Time is the measure of duration. 48. The Unit is the mean solar day . TABLE. 60 Seconds (sec.) = 1 Minute . . min. 60 Minutes = 1 Hour . . . hr. 24 Hours = 1 Day . . -. da. 7 Days = 1 Week . . wk. 365 Days, or 12 Calendar Mo. 366 Days = 1 Leap Year . yr. 100 Years...

## The Complete Arithmetic

Milton Browning Goff - Arithmetic - 1876 - 462 pages
...as a mean solar day ; that is, 24 hours, and in most countries begins and ends at midnight. TABLE. 60 seconds (sec.) = 1 minute .... min. 60 minutes = 1 hour hr. 24 hours = 1 day da. 7 days = 1 week wk. 12 calendar months = 1 year yr. 365 days (or 52 wk. 1 da.) =1 common year....

## The Complete Arithmetic, Oral and Written: Second Part

Daniel W. Fish - Arithmetic - 1876 - 302 pages
...47. Time is the measure of duration. 48. The Unit is the mean solar day . TABLE. 60 Seconds (see.) = 1 Minute . . min. 60 Minutes = 1 Hour . . . hr. 24 Hours = 1 Day . . . da. 7 Days = 1 Week . . wk. 865 Days, or 12 Calendar Mo, 866 Days = 1 Leap Year . yr. 100 Years...

## The Model Mental Arithmetic: Containing Oral Exercises for Graded and ...

Edgar Arthur Singer - Mental arithmetic - 1876 - 198 pages
...units or denominations of time are second, minute, hour, day, and year. Table. 60 seconds (sec.) are 1 minute, min. 60 minutes " 1 hour, hr. ^ 24 hours " 1 day, da. 365 days " 1 common year, yr. 366 days " 1 leap year, yr. 100 years " 1 centurtI, G. 1 days are...

## The Practical Arithmetic on the Inductive Plan: Including Oral and Written ...

William James Milne - Arithmetic - 1877 - 418 pages
...Ib. 5 oz. of silver ? MEASURES OF TIME. 274. The following are the ordinary divisions of time: TABLE. 60 Seconds (sec.) = 1 Minute . . . min. 60 Minutes = 1 Hour .... hr. 24 hours = 1 Day .... da. 7 days = 1 Week .... wk. 365 days = 1 Year .... yr. 366 days = 1 Leap Year . . yr. 100 years...

## The Elements of Arithmetic, Oral and Written: Designed for Pupils in the ...

Horatio Nelson Robinson - Arithmetic - 1877 - 250 pages
...the measure of a portion of duration. TABLE. COMMON YEAR. c 525600 min, 1 Zr. = ] 8760 hr. ( 365 da. 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 30S Daya = 1 Leap Year . . yr. Name...