# New Mental Arithmetic

Little, Brown,, 1920 - Arithmetic - 199 pages
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### Contents

 ADDITION AND SUBTRACTION 116 1 FRACTIONS Continued 39 ANGLES 153158 56 LONGITUDE AND TIME 156158 67 POSTAL SAVINGS SYSTEM 84 RATIO 92 THERMOMETER 103 AREAS 105
 VOLUME 123 WEIGHT 137 POSTAGE 140143 140 BONDS 94 164 123127 177 DECIMAL SYSTEM 6067 178 Copyright

### Popular passages

Page viii - 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 x - Time. 60 seconds (S.) make 1 minute, marked M. 60 minutes, 1 hour, h. 24 hours, 1 day, d. 7 days, . 1 week, w. 4 weeks, 1 month, mo. 13 months, 1 day and 6 hours, 1 Julian year, yr. Thirty days hath September, April, June and November ; February twenty-eight alone, all the rest have thirtyone.
Page ix - Dry Measure 2 pints (pt.) =1 quart (qt.) 8 quarts = 1 peck (pk.) 4 pecks = 1 bushel (bu.) 2150.42 cu.
Page 135 - Measures 4 gills (gi.) = 1 pint (pt.) 2 pints = 1 quart (qt.) 4 quarts = 1 gallon (gal.) 1 gallon =231 cu.
Page ix - 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 159 - Blood heat is the temperature of the interior of the human body in health. The temperature of a fever patient went up to 103�. How much higher than the usual temperature was that? 6. On a certain night the outdoor temperature went down to 18� below 0. How many degrees below freezing point was that? 7. The average January temperature in the coldest part of Siberia is 60� below 0. In Manila it is 80� above 0. How great is the difference? 8. Is this difference greater or less than the difference...
Page x - CIRCULAR MEASURE 60 seconds = 1 minute 60 minutes = 1 degree (�) 360 degrees = 1 circumference 1 degree of longitude at the equator = 60 geographical miles, or about 69 i common miles.
Page x - Number. 12 units — 1 dozen (doz.). 12 dozen = 1 gross (gro.). 12 gross =• 1 great gross. 20 units — 1 score.
Page ix - Measure 4 gills (gi.) = 1 pint (pt.) 2 pints = 1 quart 2 pints = 1 quart (qt.) 8 quarts = 1 peck (pk.) 4 quarts = 1 gallon (gal.) 4 pecks = 1 bushel (bu.) 1 gallon...
Page 96 - MEASURES 12 inches (in.) = 1 foot (ft.) 3 feet = 1 yard (yd.) 5\ yards (16� ft.)= 1 rod (rd.) 320 rods = 1 mile (mi.) 5280 feet = 1 mile 204.