# The Williams & Rogers Mental Arithmetic ...

Williams & Rogers, 1897
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### Contents

 Section 1 1 Section 2 12 Section 3 17 Section 4 28 Section 5 30 Section 6 39 Section 7 73 Section 8 75
 Section 10 82 Section 11 98 Section 12 155 Section 13 162 Section 14 167 Section 15 168 Section 16 169 Section 17 173

### Popular passages

Page 152 - TIME 60 seconds (sec.) = 1 minute (min.) 60 minutes = 1 hour (hr.) 24 hours = 1 day...
Page 152 - Thirty days hath September, April, June, and November ; All the rest have thirty-one, Except the second month alone, Which has but twenty-eight, in fine, Till leap year gives it twenty-nine.
Page 150 - Cubic Measure 1728 cubic inches (cu. in.) =1 cubic foot (cu. ft.) 27 cubic feet = 1 cubic yard (cu. yd.) 128 cubic feet = 1 cord (cd...
Page 149 - 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.
Page 87 - To reduce a mixed number to an improper fraction, — RULE : Multiply the whole number by the denominator of the fraction, to the product add the numerator, and write the result over the denominator.
Page 150 - LIQUID MEASURE 4 gills (gi.) = 1 pint (pt.) 2 pints = 1 quart (qt...
Page 86 - Multiplying or dividing both terms of a fraction by the same number does not change the value of the fraction.
Page 45 - If 2 men start from the same place and travel in opposite directions, one at the rate of 4...
Page 138 - 6 27 685 The denominator to a decimal fraction, although not ex-f pressed, is always understood, and is 1 with as many ciphers annexed as there are places in the numerator.
Page 149 - 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.