### тИ КщМЕ ОИ ВЯчСТЕР -сЩМТАНГ ЙЯИТИЙчР

дЕМ ЕМТОПъСАЛЕ ЙЯИТИЙщР СТИР СУМчХЕИР ТОПОХЕСъЕР.

### пЕЯИЕВЭЛЕМА

 Preface 7 Addition 19 Subtraction 25 Division 37 Factoring 46 Cancellation 56 Multiples 64 Addition of Fractions 70
 Compound Numbers 100 Measures of Length 109 Longitude of Time 118 Percentage 126 Loss and Gain 134 Stock Investments 145 Partial Payments 158 Exchange 170

### дГЛОЖИКч АПОСПэСЛАТА

сЕКъДА 20 - Addition is the process of finding the sum of two or more numbers.
сЕКъДА 64 - A Common Multiple of two or more numbers is a multiple of each of them ; it can be divided exactly by each of them.
сЕКъДА 20 - The sum of two or more numbers is a number which contains as many units as all the numbers taken together.
сЕКъДА 72 - Multiplying or dividing both terms of a fraction by the same number does not change the value of the fraction.
сЕКъДА 85 - Both terms of a fraction may be divided by the same number without changing the value of the fraction.
сЕКъДА 11 - Every time a letter is repeated its value is repeated. 2. When a letter is placed before one of greater value, the DIFFERENCE of their values is the number represented.
сЕКъДА 48 - A number is divisible by four if the number expressed by the two right-hand digits is divisible by four.
сЕКъДА 81 - Reduce the fractions to a common denominator and divide the numerator of the dividend by the numerator of the divisor.
сЕКъДА 56 - Multiplying or dividing both Dividend and Divisor by the same number, does not change the Quotient.
сЕКъДА 160 - What is meant by the present worth of a sum of money due at a future time?