CBSE Class 3 Mathematics:

When compared to CBSE Class 3, CBSE Class 2 Mathematics covered various simple topics on Addition, subtraction, multiplication without carry, place value in numbering system, simple division, etc., But in CBSE Class 3, next level mathematics is taught to enhance and trigger the brain of the child. For this, they have included the portions just similar to that of Class 1 and Class 2 but in little higher level. Among all the subjects of CBSE Class 3 like Mathematics, Science, Hindi and English let us check out the syllabus of Mathematics below.

CBSE Class 3 syllabus:

They cover similar syllabus just like that as Class 2 and Class 1.

• Numbers:

Children are taught to write the series of numbers up to 9999 in Class 3. Also, they are trained to pronounce and write the compact and expanded form of such numbers.

Topics covered:

1. Compact and expanded forms of numerals
2. Roman numerals
3. Ascending and descending order of the numbers
4. Rounding off
5. Place value
6. Equivalent numerical names

Examples:

1. Fill up the missing numerals:
• 200 _ _ _ _ 205
• 345_347_ _ 350
• 34_ _ _ 38_ _ 41

• 200 201 202 203 204 205
• 345 346 347 348 349 350
• 34 35 36 37 38 39 40 41
1. Write the equivalent number names for the following:
• 199 = One hundred and ninety nine
• 214 = Two hundred and fourteen
• 3450 = Three thousand four hundred and fifty
1. Write the equivalent numerals for the number names
• Three hundred and sixty six = 366
• Four hundred and thirty five = 435
• Two thousand six hundred and thirty five = 2635
1. Roman numeral VI ______ than VIII
• =

1. How would you write ten in roman letter?
• X
• XII
• V

Addition and Subtraction are rather important chapters for a growing child which triggers his/her brain to solve the questions. In class 1 and class 2, addition and subtraction were little simpler with simple two digit and three digit additions and simple word problems. But in class 3, next level of addition such as four digit addition, subtraction with or without borrowing, addition and subtraction word problems are covered.

Examples:

• 8789 + 5674 = ?
• 567 + 4563 = ?

• 14463
• 5130
1. Find 6090 – ______ = 5590

• 500

• Multiplication and Division:

Covers the topics such as counting using rows and columns, multiplication tables from 2 to 7, multiplying by 1, multiplying by 0, grid multiplication and word problems in multiplication. In division it covers, division by 10 and 100, division with two digit number, multiplication and division mixed problems, division word problems, etc.

Examples:

1. 500 pencils are shared among 5 students of the classroom equally. How many pencils did each one get?

1. There are 20 bags of apples. Each bag contains 100 apples. Totally how many apples are there?

• Fractions:

Fractions are the important part of mathematics and it is very important to understand it clearly. Fraction comes as proper and improper fraction. The terms numerator and denominator are very important in the concepts of fraction.

Numerator = Number that is above the fraction line. Example: 2 in 2/3

Denominator= Number that is below the fraction line. Example: 3 in 2/3

Proper fraction has numerator smaller than the denominator whereas improper fraction has numerator larger than denominator. An improper fraction can be converted into a mixed fraction having a proper fraction and integral part. Fractions can be added, subtracted, divided and also multiplied.

Examples:

1. Find out the fraction of vowels in the word “GREAT”?

2/5

1. There are totally 5 glasses of water in the table. Geetha drank 3 glasses of water. What is the fraction of water did geetha drink?

3/5

• Rupees and paise:

Students are taught how to spend their own money and how to add, subtract, multiply and divide with their own money.

Examples:

1. 6 Rupees is equal to _______ paise

1. 35 is equal to ______ paise

1. 675 paise is equal to _____ rupees

• Time and Date:

Topics covered such as Time taken to finish a task, puzzles for young minds, understanding the calendar, reading the clock and differentiate between AM and PM, etc.

Examples:

1. How many rounds does an hour hand complete in a day?

1. What is the exact time taken by the minute hand to move from one number to the next number?

• Shapes and their properties:

Topics covered such as different shapes and sizes, properties of shapes, edges and corners, vertices and surface, review of shapes and sizes, etc.,

Examples:

1. Which of the following options are measured in cms and m?
• Length of the banana
• Distance from home to office

• In cms
• In cms
• In meters
1. Mention the length of the objects surrounding you:
• Pen
• Sharperner
• Spoon

• 10 cms
• 3 cms
• 8-9 cms

• Measurement of length, mass and capacity:

The basic things like standard unit of length, standard unit of mass, standard unit of capacity, converting meter to centi-meter, milli-meter and kilometer, etc are taught in this section. Students are given the basic understanding that the length of the pencil is measured in centi-meters whereas the distance between two places are measured in meters. Similarly, they are also taught how to measure the mass (in terms of kgs) and capacity (in terms of ml and l).

Examples:

1. 18 L = _____ ml

1. My mother is making noodles for dinner. Each noodles packet weighs 500g. How many grams of noodles will be there in 6 packets.

1. Add 85m 25cm and 56 m 44 cm and write the answer:

• Smart charts:

Pictorial representation of collection of data is called as charts. Topics which are covered are drawing simple charts with two or multiple columns, reviewing simple graphs, pictograph, etc.

Examples:

1. Answer the questions according to the datas given below:
• Painting : 10

Dancing: 8

Music: 5

Craft: 15

Cycling: 13

Gardening: 14

Stamp collection: 10

Questions:

1. Which is the most popular hobby?

1. Which is the least popular hobby?

1. What is the difference between the number of students interested in Stamp collection and Dancing?

• Play with patterns:

This section covers topics such as understanding pattern around us, detecting the number patterns, arranging in alphabetical order, skip counting, growing patterns and even odd patterns.

Examples:

1. Arrange the following names in alphabetical order:
• Abinay
• Xavier
• Harish

• Abinay
• Harish
• Xavier
1. Complete the following numerical patterns:
• 98,198,298,398,_

• 98,198,298,398,498

Thus, these are the topics covered in CBSE Class 3 Mathematics.

CBSE Class 3 Science:

The topics which are covered under the CBSE Class 3 Science stream are as follows:

• Living and non living things
• Plants and animals
• Our body
• Home
• Safety and first aid
• Our Environment and our universe
• Force, work and energy
• Light and sound
• Matter
• Transport and communication
• My family:

These topics in detail are as below:

• Living and non living things:

Living things are the organisms which are made of cells and those which are alive. In other words, alive means breathing, sleeping, growing, moving and reproducing. All types of living things need food and energy for the survival to do their day-to-day activities. Best examples of living things are animals, plants, humans, bacteria, etc.,

Non living things are just opposite to that of living things. Non living things are the things which are not alive and hence does not breathe, reproduce, move and grow. Best examples of non living things are Paper, pen, stone, etc.,

Examples:

1. Name any two living things and non living things:

Living things: Plant, dog

Non-living things: soap, pencil

1. What is difference between a living thing and non living thing:

Living thing has life and can move, grow and reproduce.

Non living thing does not have life and does not move, grow and reproduce.

• Plants and animals:

This chapter covers the various types of plants and animals on the earth. Plants are the green shrubs or herbs which have different parts such as stems, roots, branches, etc. The functions of the roots are to carry water and nutrients from the soil to all parts of the plants. There are different types of plants such as flowering, non-flowering, short, long ,etc.,

Similarly, animals are huge in variety and every animal has unique and different characteristics. Every animal has its own color, pattern, body weight and structure. For example, the patterns in the body of the tiger are different when compared to the pattern of zebra. Similarly, the strength of an elephant is quite higher when compared to the strength of a deer.

Animals can be differentiated into various categories like insects, reptiles, birds and mammals. Animals like cow, hen, and goat are tamed for the household purposes and are called as domestic animals. Similarly, animals like tiger, lion, rhino, and deer can be seen only in dark forest and cannot be tamed in the houses for domestic purposes.

Carnivores:

Animals which feed on other animals are called as carnivores. Example: Tiger, lion, wolf, etc.,

Omnivores:

Animals which feed on other animals as well as leafy vegetables are called as omnivores. Example: Crow, rat, peacock, etc.,

Herbivores:

These types of animals are soft by nature. They feed only on fruits, green and leafy vegetables, etc., Examples: cow, deer, goat, etc.,

Examples:

1. Name any two water animals?

1. I fix the plant to the soil. Who am i?

• Our body:

Human body consists of different organs which are responsible for different kinds of tasks individually. This chapter covers the main systems of our human body and their functions.

Excretory system:

This is an important system which releases unwanted wastes from our body. Pair of kidneys helps in the process of eliminating unwanted waste from our body.

Nervous system:

This is a main control system for a human body. It consists of brain, spinal cord, sensory organs and nerves which connect throughout the entire body. This is responsible for all the sensory organs of the body.

Circulatory system:

This is a vast network of organs and vessels that is responsible for flow of blood, nutrients, hormones and oxygen. Without the circulatory system the body will fail to fight against the diseases and hence the body becomes more vulnerable to any kind of diseases.

Respiratory system:

As the name suggests, respiratory system is responsible for inhaling fresh oxygen and exhaling carbon dioxide. This process is done with the help of pair of lungs.

Examples:

1. Which are the organs used for the respiration process?

Answer: Nose, lungs, trachea and bronchi

1. The process of removing waste from our body is called as

• Home:

House is a place for shelter and safety. This is quite different from the word “Home”. House is made up of different materials whereas home is a place where you live with your family and friends. The topics which are covered under this chapter are your house and people living in it, animals found in the houses, how to keep your home tidy and beautiful, etc.,

Examples:

1. What kind of animals can be tamed as pet animals in our home?

• Safety and first aid:

First aid is the immediate attention to the patients before any medical attention. The main aim of a first aid treatment is to prevent further injury, preserve life and promote recovery. First aid box consist of things such as cotton, bandage, scissors, antiseptic powder, ointment, pain killer, etc.,

First aid treatment for a bone fracture:

A bone fracture can occur during an athletic completion, accident or during some cases. During such bone fractures immediate medical attention is needed to prevent further injury. But however, before that, few first aid treatments which can be taken are

1. Please do not move the part which is injured. Be careful during this time since moving the injured part may cause severe damage to the bones.
2. Apply an ice pack wrapped in cloth
3. Splint that area if possible
4. Call for medical attention as soon as possible

Examples:

1. Write any two steps to be taken when a person is in unconscious state?

Answer: Check their breathing by tilting their head backward and feel the breath, Loosen his tight clothing.

1. What should be done when a ship catches fire and we are in it.

Answer: Immediately wear life jacket and try to catch a life boat.

• Our environment and our universe:

This chapter covers the topics such as air and weather and water.

Air:

This is an invisible gaseous substance which is a mixture of oxygen and nitrogen. This kind of air is pure when it is not polluted. Air pollution occurs due to many factors such as increase in the usage of vehicles, releasing more wastages and dust from the industries, burning plastics and other raw materials, etc.,

Water:

This is a transparent substance which is very much necessary for living organisms. Most part of our body is covered with water. Drinking 3 to 4 liters of water daily is an essential day to day activity. Thus, water must be pure and prevented from pollution.

Our Universe:

This is a study of galaxies, number of planets, solar system, stars, meteoroids, satellites, etc., This chapter covers nine planets and their names, function of our solar system, moo, sun and satellites.

Examples:

1. Name any three activities which can be done without water?

1. What is meant by atmosphere?

Answer: The layer of air surrounding the earth.

• Rocks and soil:

Rocks are made up of one or more minerals. There are three main classifications of the rocks such as sedimentary rocks, metamorphic rocks and igneous rocks. Soil is formed from the fine rock particles mixed with air, water and particles from dead plant and animals.

Examples:

1. In addition to the rock particles, soil contains?
• Air and water
• Water and plants
• Minerals, organic matter, air and water
• Water, air and plants

Answer: Minerals, organic matter, air and water

1. Which top soil is best suited for growing plants?
• Sandy soil
• Loamy soil
• Clayey soil
• None of these

• Force, work and energy:

Work is a result when a force acts upon an object to cause displacement. In other words, it refers to an activity involving a force and movement in the direction of force. Energy is a capacity to do any work. In other words, in order to do any kind of work you need energy.

Force is a push or pull upon an object resulting from the object’s interaction with another object. Whenever, there is an interaction between two objects, there exists a force. When the interaction ceases, two objects no longer experience force.

Examples:

1. Does a work done on a load depend upon the time taken to raise the load?

Answer: No, work does not depend on the time

1. Is work a scalar or vector quantity?

Answer: Work is a scalar quantity

1. Can kinetic energy of an object be in negative?

Answer: No it can’t be negative

• Light and sound:

A sound is a vibration that travel through the air or another medium and can be heard when they reach a person’s or animal’s ear. Light is a natural agent that stimulates the eye sight and make things brighter than normal.

Examples:

1. Sound can travel through?
• Gases only
• Solids only
• Liquids only
• Solids, liquids and gases

Answer: Sound travels through solids, liquids and gases as it requires a medium to travel through.       These three states provides medium for the sound to travel. Sound cannot travel in vacuum.

1. Which of the following voices is likely to have minimum frequency?
• Baby boy
• Baby girl
• A man
• A woman

Answer: A man voice has minimum frequency since the sound is directly proportional to its pitch. Thus, the voice of an adult man has lower pitch when compared to the other voices.

1. An image that cannot be obtained on the screen is called as ___

• Matter:

Matter is a substance that has inertia and occupies physical space. According to physics, matter consists of various types of particles such as mass and size.

Examples:

1. Which of the following are matter? Chair, air, cold drink, smell of perfume.

Answer: Anything that occupies space and has mass is called as matter. Matter can exist in three states such as solid, liquid and gas. Chair is a solid state of matter. Air and smell of perfume are gaseous state of matter. Cold drink is a liquid state of matter.

1. A diver is able to cut through water in a swimming pool. Which property of matter does this observation show?

• Transport and communication:

There are different means of transport in our country. In our day-to-day life, we go by bus, car, scooter, bicycle, auto rickshaw or by any other means of transport. Communication is a way of expressing our thoughts and ideas to the people we meet. We talk to our parents, friends, neighbors and share our ideas. Just remember, if we do not have anyone to communicate or share our thoughts? Ideas and feelings cannot be exchanged in such cases. Thus, communication is very important in our everyday life.

Examples:

1. Give any two transports of the people in villages?

1. Which means of transport will you use to travel from Chennai to Delhi?

1. Letters and telegrams are common means of ______

1. E-mail is sent through a ______

1. Who invented television?

• My Family:

Our first school is our family. Our parents, brothers, sisters, elders are our family. We learn many things from our family such as good manner, discipline, good habits, etc., Our parents teach us basic things in our everyday life and how to respect the elders. Thus, learning about our family is very important and everyone should know their own family’s likes and dislikes.

Examples:

1. What is a family?

Answer: A group consisting of parents and children living together in the same household is called a family.

1. What is an extended family?

Answer: An extended family consists of close relatives, grandparents, cousins living together in the close proximity or in the same house.

Above are the syllabus covered for the CBSE Class 3 science stream.