# Manual of Intellectual Arithmetic: An Independent Treatise Upon the Basis of Mental Arithmetic

R. S. Davis, 1877 - 151 σελίδες

### Περιεχόμενα

 Ενότητα 1 4 Ενότητα 2 5 Ενότητα 3 25 Ενότητα 4 54
 Ενότητα 5 84 Ενότητα 6 88 Ενότητα 7 136 Πνευματικά δικαιώματα

### Δημοφιλή αποσπάσματα

Σελίδα 86 - SQUARE MEASURE 144 square inches (sq. in.) = 1 square foot (sq. ft.) 9 square feet = 1 square yard (sq. yd.) 30| square yards = 1 square rod (sq. rd.) 160 square rods = 1 acre (A.) 640 acres = 1 square mile (sq.
Σελίδα 84 - Length 12 inches (in.) = 1 foot (ft.) 3 feet = 1 yard (yd.) 5| yards, or 16| feet = 1 rod (rd.) 320 rods, or 5280 feet = 1 mile (mi.) Square Measure 144 square inches (sq.
Σελίδα 88 - LIQUID MEASURE 4 gills (gi.) = 1 pint (pt.) 2 pints = 1 quart (qt...
Σελίδα 129 - The head of a fish is 12 inches long, the tail is as long as the head + £ of the body, and the body is as long as the head and tail ; what is the length of the fish ? 4.
Σελίδα 34 - If two men start from the same place, and travel in opposite directions, the one traveling at the rate of 3 miles an hour, and the other at the rate of 4 miles an hour, how far apart will they be at the end of 5 hours ? 11.
Σελίδα 130 - A and B start from the same point, and travel in the same direction around a square, each side of which measures 5 miles ; A travels at the rate of 4| miles an hour, and B at the rate of 3 miles an hour ; in what time will they be together again ? How many miles will each have traveled ? How many times will each .have been around the square ? 16.
Σελίδα 90 - Time is a measured portion of duration. Table. 60 seconds (sec.) are 1 minute, m. 60 minutes, 1 hour. h. 24 hours, 1 day, d. 365 days, 1 common year, cy 366 days, 1 leap year, 1. y. Also, 7 days are 1 week, w.
Σελίδα 81 - TROY WEIGHT. 24 grains (gr.) = 1 pennyweight (pwt.). 20 pennyweights = 1 ounce (oz.). 12 ounces = 1 pound (lb.). 351. Apothecaries' weight is used in mixing medicines and in selling them at retail. APOTHECARIES
Σελίδα 35 - There is an orchard consisting of ten rows of trees, and nine trees in each row ; how many trees are there in the orchard ? 12.
Σελίδα 49 - At 8 cents a pound, how many pounds of sugar can be bought for 6 dozen of eggs, at 12 cents a dozen ? 31.