Comprehension
I. Give the English equivalents for the following phrases:
Вещественное число; (ир)рациональное число; обеспечивать (давать) основу; широко использоваться; делать покупки; проводить бухгалтерские расчеты; научные вычисления более высокого уровня; слагаемое; разность; вычитаемое; множитель; произведение; равные части; умножать/делить на; делимое; делитель; частное; свойства чисел.
II. Complete the following text:
Arithmetic operations
The arithmetic operations associated with real numbers are a________, s________, m________, and d_________. The operations of addition and subtraction are related, as are the operations of multiplication and division.
The addition of two numbers a and b is denoted by a + b = c, where c is the result of the addition of a and b. Both numbers, a and b, are called a________, and c is the s_____ of a and b.
The subtraction of two numbers a and b is denoted by a –b = c, where c is the result of the subtraction of b from a. The result c is also called the d_______ between a and b, and a is known as the m_______, b - as the s________.
The multiplication of two numbers a and b is denoted by ab = c, where c is the result of the multiplication of the numbers a and b. Both numbers, a and b, are called f______ (or multipliers), and c is the p______ of a and b. The operation of division of two numbers is derived from the operation of multiplication. Given any two real numbers a and b, a/b = a × 1/b = c, where c is the result of the division of a by b. Thus, to divide a by b, the inverse of b is multiplied by a. This means that multiplication and division are inverse operations to each other. In the above formula, a is called the d________, b is the d______, and c is the q________ of a and b.
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