A complete system of mental arithmetic

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Página 28 - OF TIME. 60 Seconds = 1 Minute 60 Minutes = 1 Hour 24 Hours = 1 Day 7 Days = 1 Week 28 Days = 1 Lunar Month...
Página 29 - TABLE. 60 seconds (") make 1 minute,...'. 60 minutes " 1 degree, . . . °. 30 degrees " 1 sign S. 12 signs, or 360°,
Página 10 - To find what any number of pence per day will amount to in a year. RULE.
Página 19 - Prove one of the following rules of mental arithmetic in such a way as to make it intelligible to a class of children. 1. To find the value of 144 things in shillings, multiply the price in farthings by 3. 2. To find the interest of any sum of money for any number of months at...
Página 9 - To find the value of 100 articles, the price of one being given. RULE. — For every farthing in the price take as many pence, and twice as many shillings. Thus, 100 pencils at 1-Jd. each is 12«.
Página 16 - ... advance etc. (Temp.). Hier kann auch der beiden fremden Präpositionen gedacht werden, welche sich eingedrängt haben: per, lat. per, distributiv für, auf: A mau earns 30 shillings -per week, how much does he earn per annum?
Página 28 - Puncheon. 1008 = 504 = 126 = 3 =2 = 1-5= 1 Pipe. 2016 = 1008 =252 = 6 =4 =3 =2 = 1 Tun. ALE AND BEER MEASURE. Pints. 2 = 1 Quart. 8 = 4 = 1 Gallon. 72 = 36 = 2=1 Firkin.
Página 15 - Find the interest for one year, and multiply by the number of years or the part of a year.

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