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Математика на английском. Материалы по 2 занятию.
26.09.2015, 16:00

На втором занятии мы научились:

  • Складывать и вычитать

  • Умножать и делить ... по-английски

Addition is written using the plus sign "+" between the terms; that is, in infix notation. The result is expressed with an equals sign. For example,

 ("one plus one equals two")

 ("two plus two equals four")

 ("three plus three equals six")


Subtraction is written using the minus sign "−" between the terms; that is, in infix notation. The result is expressed with an equals sign. For example,

 (verbally, "two minus one equals one")

 (verbally, "four minus two equals two")

 (verbally, "four minus six equals negative two")


In arithmetic, multiplication is often written using the sign "×" between the terms; that is, in infix notation. For example,

 (verbally, "two times three equals six")

 


Division is often shown in algebra and science by placing the dividend over the divisor with a horizontal line, also called a fraction bar, between them. For example, a divided by b is written 

This can be read out loud as "a divided by b", "a by b" or "a over b". A way to express division all on one line is to write the dividend (or numerator), then a slash, then the divisor (or denominator), like this:

Категория: Мои файлы | Добавил: mcrowan | Теги: Division, multiplication, subtraction, addition
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