ABSTRACT
Scientific notation is a convenient way of writing very large or very small numbers. A number written in scientific notation is said to be in standard form. Rounding is the process of reducing the amount of non-zero digits in a number but keeping the value approximately the same. The Counting Forward approach involves starting with the larger number and counting forwards the required number of steps on the number line. In the written algorithm for subtraction with the larger number on top. The Order of Operations or Rule of Order is the agreed-upon convention used when performing mathematical calculations. The division algorithm gives the quotient of two numbers. The divisor is placed to the left of the dividend. A clear understanding of factors and multiples is essential when working with fractions. The order of operations ensures that there is a unique answer to any calculation.
