Embibe Big Book for Mathematics for ICSE Class 1

Mathematics

Addition and Subtraction Upto 20

In this chapter, we will learn to add numbers using the number strip. It discusses the addition of three numbers. It describes subtraction using the number strip and by drawing lines and crossing them. Word problems are also included in this chapter.

In this topic, we will learn how to add numbers using number strips. It helps us to use the number strips more efficiently. Further, it helps us to improve the concepts of counting forwards. It also includes practice questions.

Addition Using Number Strips

This topic helps us to understand how to add numbers up to twenty by drawing line and by counting them. It includes multiple pictorial examples and practice questions to improve the concepts. It helps to improve the arithmetic concepts.

Addition Using Drawing Line and Counting Them

This topic discusses how to subtract numbers using drawing lines and then crossing them out to find the answer. It includes multiple pictorial examples to relate the topic to real life. It also includes many practice questions to improve the concepts.

Subtraction Using Drawing Line and Crossing Out

This topic discusses many addition and subtraction word problems. These word problems are related to real life context and helps us to know the use of addition and subtraction in daily life. It helps us to improve the arithmetic concepts.

Addition and Subtraction Word Problems

NumbersWiz

Inspired Maths

This chapter explains different kinds of patterns that are present in nature and includes exercises to teach us about number patterns. It also includes pictures of different shapes and patterns.

Patterns

This chapter describes the two forms of money, rupees and paise. It includes pictures that help us identify the different types and understand the value of money. It also includes some exercises associated with cost and payment of items.

Money

This chapter explains the importance of time with some examples. It defines the terms, earlier and later, along with the duration of time. It also teaches us how to read time in the clock and includes some pictures and exercises.

Time

This chapter explores the concept of measurement of objects. It includes the methods of measuring length, weight and capacity. It also defines the units in which length can be measured and includes some examples and exercises for better learning.

Measurement

This chapter teaches us the steps to add and subtract two digit numbers. It also includes some pictures and word problems on addition and subtraction, along with a few activities for a better understanding of the concept.

Addition and Subtraction Upto 100

The chapter deals with the meaning of subtraction. It discusses the various methods of subtraction that include vertical subtraction and subtraction on the number line. We will also study number stories in subtraction.

Subtraction within 10

In this chapter, we will understand the meaning of addition through an activity. It discusses the methods of vertical addition, adding numbers with 0 and addition on the number line. We will also learn some number stories in addition.

Addition within 10

This chapter explores how to compare numbers. We will learn the number names of numbers 21-100. It explains ordinal and formal numbers and how to write numbers in expanded form. We will also learn to arrange numbers in ascending and descending order.

Numbers 21-100

The chapter deals with the ones and tens place of the numbers. Here, we will learn the numbers from eleven to twenty. The representation of numbers on the number line along with the greatest and smallest number in a series is also mentioned.

Numbers 11-20

In this chapter, we will learn to count the numbers by matching the number of objects with their number. It discusses the concept of backward counting and explains how to compare the numbers. It also describes the increasing and decreasing order of numbers.

Number Upto 10

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Addition and Subtraction Upto 20

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