This is very important book of the series as it introduces a number of key areas in mathematics. It starts with a revision of the basic skills covered in the first book. The children will learn numbers from 1-100 and practice counting, numerals and number words writing in a variety of ways. After building strong understanding of numbers, the children learn how to add, subtract, multiply and divide. This book also provides knowledge of shapes, time, Pakistani Currency, measurement, fraction, etc in a comprehensive manner.