Arithmetic ( අංක ගණිතය )

What is the most appropriate way of classifying real numbers and why π can not be geometrically constructed on number line?

What are divisors, are they same as factors and are there negative factors of a given positive integer?

What is the history of times table, why it is important in mathematics and what are the patterns you can find in times table ?

As you know we teach our students, sum of rational numbers is also a rational number as a property of rational numbers when we introduce real numbers in the beginning of advanced level mathematics. But though the constant e is ...