# Item List

## 1.7 Surds

Surds are the square roots (âˆš) of numbers that cannot be simplified into a whole or rational number. It cannot be accurately represented in a fraction. In this section, you learn about Surd, rational and irrational surd, rational, irrational, rationalise the denominator, and rationalise.

## 1.6 Powers of 10 and Standard Form

The powers of 10 refer to the numbers in which the base is 10 and the exponent is an integer. In this section, you learn about Powers of 10 and Standard Form. Powers of 10, standard form, and number indices.

## 1.5 Zero, Negative and Fractional Indices

Negative indices are exponents or powers that have a minus sign in front of them. Fractional indices are powers of a term that are fractions. In this section, you learn about Zero, Negative and Fractional Indices, fractional indices, negative indices, zero indices, number indices advanced fractional, and number indices.

## 1.4 Calculating with Powers (Indices)

An index is used to show how many times a number is multiplied by itself. The plural word for index is indices. In this section, you learn about Calculating With Powers , number indices, powers, indices, positive integer, and power of numbers.

## 1.3 HCF and LCM

The HCF defines the greatest factor present in between given two or more numbers, whereas LCM defines the least number which is exactly divisible by two or more numbers. In this section, you learn about Prime Numbers, algebraic fractions, prime factorisation, HCF and LCM, LCM and HCF using prime factors, HCF, and LCM.

## 1.2 Place Value and Estimating

To estimate the answer means to find a value that is close enough to the right answer, usually with some thought or calculation involved. In this section, you learn about, Place value, rounding to a specified degree of accuracy, rounding, Rounding to a given number of decimal places, Rounding to a given number of significant figures, decimal places, significant figures, approximate answers using estimates, and approximation.

## 1.1 Number Problems and Reasoning

Work out the total number of ways of performing a series of tasks to solve mathematical problems using mathematical skills. In this section, you learn about, Number Problems and Reasoning, number, arrangements, number problems, and reasoning.