Junior High School Mathematics, Book 2Heath, 1922 - Mathematics |
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Page ix
Walter Wilson Hart. ADVICE TO THE PUPIL Accuracy in arithmetic . Careful writing of figures and neat orderly arrangement of the solution of an example will help you solve your example accurately . Avoid doing " scratch work . " Do upon ...
Walter Wilson Hart. ADVICE TO THE PUPIL Accuracy in arithmetic . Careful writing of figures and neat orderly arrangement of the solution of an example will help you solve your example accurately . Avoid doing " scratch work . " Do upon ...
Page 1
... figures name only the results , even in your mind . Thus , 9 5 Think : 15 , 20 , 29. Write 29 . Do not think 8 and 7 are 15 . 7 15 and 5 are 20 . 20 and 9 are 29 . 8 29 c . When adding a column of figures , group and add at sight ...
... figures name only the results , even in your mind . Thus , 9 5 Think : 15 , 20 , 29. Write 29 . Do not think 8 and 7 are 15 . 7 15 and 5 are 20 . 20 and 9 are 29 . 8 29 c . When adding a column of figures , group and add at sight ...
Page 2
Walter Wilson Hart. d . When adding long columns of figures , write down the sum of the units ' column ; below that write the sum of the tens ' column , etc. , as in the following example . Thus , 67 The sum of the units is 20 units 835 ...
Walter Wilson Hart. d . When adding long columns of figures , write down the sum of the units ' column ; below that write the sum of the tens ' column , etc. , as in the following example . Thus , 67 The sum of the units is 20 units 835 ...
Page 52
... figures . 2. Multiply each of the following numbers by a short method : 37.5 , 216 , 432.4 , 5.94 , 60.25 c . by 25 d . by 9 g . by 125 h . by 75 . a . by 5 b . by 50 e . by 15 f . by 99 3. By the formula Srl , find S when r = 21 and 7 ...
... figures . 2. Multiply each of the following numbers by a short method : 37.5 , 216 , 432.4 , 5.94 , 60.25 c . by 25 d . by 9 g . by 125 h . by 75 . a . by 5 b . by 50 e . by 15 f . by 99 3. By the formula Srl , find S when r = 21 and 7 ...
Page 72
... figure given in Example 6 is a paral- lelogram . What is the altitude then ? 8. a . If geranium plants cost 20 ¢ each , what will it cost to plant one geranium on the average , on every square foot of space in a circular flower bed ...
... figure given in Example 6 is a paral- lelogram . What is the altitude then ? 8. a . If geranium plants cost 20 ¢ each , what will it cost to plant one geranium on the average , on every square foot of space in a circular flower bed ...
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Common terms and phrases
ad valorem altitude amount due angle balance bank discount borrowed bought brokerage called cash casting out nines compound amount compound interest cost cubic cylinder date of maturity debt decimal decimeters deposit dividends divisor dollar earn equal EXERCISE Express face value Find the interest following examples following numbers formula hypotenuse inches income tax indorse interest on $1 invested July June length Liberty Bonds market value means measure meters metric system mills minuend Multiply the numbers negative numbers note discounted numbers in Example owner Pages paid par value parallelopiped payment perimeter person pounds preferred stock premium prism profit purchaser Pythagorean Theorem rate of income rate per cent ratio receive rectangle result right triangle selling price semi-annually shares sides sold Solution Solve the equation square root Subtract subtrahend tax rate temperature triangular prism units weight width
Popular passages
Page 165 - OF WEIGHT 10 milligrams (mg.) = 1 centigram (eg.) 10 centigrams = 1 decigram (dg.) 10 decigrams = 1 gram (g.) 10 grams = 1 dekagram (Dg...
Page 175 - The first and fourth terms of a proportion are called the extremes, and the second and third terms, the means. Thus, in the foregoing proportion, 8 and 3 are the extremes and 4 and 6 are the means.
Page 247 - The sum of two sides of a triangle is greater than the third side, and their difference is less than the third side.
Page 251 - TIME 60 seconds (sec.) = 1 minute (min.) 60 minutes = 1 hour (hr.) 24 hours = 1 day (da.) 7 days = 1 week (wk.) 365 days = 1 common year...
Page 251 - English Money 4 farthings (far.) = 1 penny (d.) 12 pence = 1 shilling (s.) 20 shillings = 1 pound or sovereign...
Page 189 - To add two positive numbers, add their absolute values (§ 21), and prefix the plus sign to the result. 2. To add two negative numbers, add their absolute values and prefix the minus sign to the result.
Page 198 - RULE To subtract one number from another, change the sign of the./ subtrahend and add algebraically.
Page 170 - The Ratio of one number to another is the quotient of the first divided by the second. Thus, the ratio of a to b is -; it is also written a : b.
Page 196 - The number to be subtracted is called the Subtrahend. The number from which the subtrahend is to be subtracted is called the Minuend. The result is called the Remainder or Difference. 21. The symbol — , read "minus" or "less,
Page 86 - Duties are either specific, or ad valorem. A specific duty is a certain sum paid on a ton, hundred weight, yard, gallon, &c.