SELECT
	10/2 AS "деление", 
	35*3 AS "умножение",
	38-4 AS "вычитание",
	45+12 AS "сложение",
	13/2 AS "деление целых чисел",
	13.0/2 AS "правильное деление",
	13%2 AS "целочисленное деление",
	25%7 AS "целочисленное деление"