Junior High School Mathematics Book 1-3 [and] 1 Book Course, Βιβλίο 1C. Scribner's Sons, 1920 |
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Σελίδα 2
... means were used in the early times to record numbers . Marks were also made upon stones and in the sand . The marks were not combined to form numbers as we do now , but a separate one had to be used for each number . The following are a ...
... means were used in the early times to record numbers . Marks were also made upon stones and in the sand . The marks were not combined to form numbers as we do now , but a separate one had to be used for each number . The following are a ...
Σελίδα 1
... co ing in units , tens ( tens of units ) , hundreds ( tens of te thousands ( tens of hundreds ) , and so on , has likely c from this early finger counting by tens . The nine nume knots in ropes , and other crude means were us. WHOLE ...
... co ing in units , tens ( tens of units ) , hundreds ( tens of te thousands ( tens of hundreds ) , and so on , has likely c from this early finger counting by tens . The nine nume knots in ropes , and other crude means were us. WHOLE ...
Σελίδα 2
Theodore Lindquist. knots in ropes , and other crude means were us early times to record numbers . Marks were also m stones and in the sand . The marks were not con form numbers as we do now , but a separate one used for each number ...
Theodore Lindquist. knots in ropes , and other crude means were us early times to record numbers . Marks were also m stones and in the sand . The marks were not con form numbers as we do now , but a separate one used for each number ...
Σελίδα 35
... mean the same and eac gives 3. In the same way × means of § , which w know is . Why ? of 15 equals 2 of 15 , or 2 X which is 10. It is generally simpler to use the followin form : 2102 3 5 × 13 = 2 × 5 = 10 ; 3 814 X 2027 8 21 || 2 7 ...
... mean the same and eac gives 3. In the same way × means of § , which w know is . Why ? of 15 equals 2 of 15 , or 2 X which is 10. It is generally simpler to use the followin form : 2102 3 5 × 13 = 2 × 5 = 10 ; 3 814 X 2027 8 21 || 2 7 ...
Σελίδα 36
... means distinct operations . EXERCISES Find the following products in the simplest ma pencil and paper only when necessary : 1. 2 X 11 21 8. 1 × 1/20 15 . 64 2. 3 X 4 9 . X & X 35 16 . 35 3. 4 X 10 10. 3 X 2 17. 483 4. 5 × 6 512 11. 3 1 ...
... means distinct operations . EXERCISES Find the following products in the simplest ma pencil and paper only when necessary : 1. 2 X 11 21 8. 1 × 1/20 15 . 64 2. 3 X 4 9 . X & X 35 16 . 35 3. 4 X 10 10. 3 X 2 17. 483 4. 5 × 6 512 11. 3 1 ...
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Συχνά εμφανιζόμενοι όροι και φράσεις
acre added altitude angle apples base board feet bushel called cent circle coal common fractions Compute cone Construct cubic feet cubic foot cubic inches cyclometer cylinder decimal places denominator diagonal diameter digit distance divided divisible divisor Draw a line Emporia equal equation EXERCISES Find Express Fahrenheit Find the area Find the cost Find the number Find the volume gallons gives Hence hour hypotenuse Improper Fractions International Date Line isosceles length Measure meridian meter metric metric system Minuend mixed number motion multiplied number game parallelogram pencil and paper plane Play a number pounds prism problems rectangle rectangular Reduce right triangle root sell signed numbers slant height sold solid Solve square subtracted surface thermometer units velocity vertex watt-hours weighs whole number width write yard zero
Δημοφιλή αποσπάσματα
Σελίδα 226 - LIQUID MEASURE 4 gills (gi.) = 1 pint (pt.) 2 pints = 1 quart (qt...
Σελίδα 225 - 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 227 - TIME 60 seconds (sec.) = 1 minute (min.) 60 minutes =1 hour (hr.) 24...
Σελίδα 226 - 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...
Σελίδα 229 - OF WEIGHT 10 milligrams (mg.) = 1 centigram (eg.) 10 centigrams = 1 decigram (dg.) 10 decigrams = 1 gram (g.) 10 grams = 1 dekagram (Dg...
Σελίδα 229 - Capacity 10 milliliters (ml.) = 1 centiliter (cl.). 10 centiliters = 1 deciliter (dl.). 10 deciliters = 1 liter (1.). 10 liters = 1 Dekaliter (DL). 10 Dekaliters = 1 Hektoliter (HI.). 10 Hektoliters = 1 Kiloliter (Kl.).
Σελίδα 181 - A Sphere is a solid bounded by a curved surface all points of which are equally distant from a point within called the centre.
Σελίδα 225 - 1 Square Chain . sq. ch. 10 Square Chains " 1 Acre A. 640 Acres " 1 Square Mile . . sq. mi. 36 Square Miles (6 miles square)
Σελίδα 20 - ... if the number formed by the last three digits is divisible by 8 if the sum of the digits is divisible by 9 if its last digit is 0 Simplify 3525 4341 This fraction can be simplified by dividing 3.
Σελίδα 20 - Which of the following are divisible by 9 : 24,795 ? 681,453 ? 745,613 ? 24,738 ? 7. // the sum of the digits of a number is divisible by 3, the number is divisible by 3.