Cbse Class 3 Maths Notes Chapter 9 How Many Times
How Many Times?
How many means is the number or counting of anything like there are four chairs, there are two apples.
Then what is meant by time is simply multiplication or it is repeating about anything.
Solved example 1: The almirah has 5 shelves. There are 6 books on each shelf. How many books are in the almirah?
Ans: Given, Number of books on each shelf =6
And the total number of shelves = 5
Then total books in almirah = 5 times 6 = 5 × 6 = 30 books.
Hence the total number of books in the almirah = 30.
Solved example 2: Three pens were given to each student in the class. If there were 34 students, How many pens were given in all?
Ans: Total students in class = 34
Each student gets 3 pens.
So, total number of pens given in class = 34 times 3 = 34 × 3
Hence total pens given in class = 102.
Leggy Animal
Animals having long and attractive legs are known as leggy animals.
There are different numbers of legs for different animals.
Examples: Four-legged animals, eight legs animals etc. Goats are four-legged animals and octopuses have eight legs.
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Solved example 3: Octopus has 8 legs, then how many legs altogether do 7 octopuses have?
Ans: Given, the Number of legs in one octopus = 8.
The number of octopuses = 7.
Total number of legs in 7 octopuses = 8 times 7 = 8 × 7 =56.
Hence the number of legs in 7 octopuses = 56.
How to Find Numbers by Counting
By counting, we can say there are 3 spiders.
Solved Example 4: If a spider has 8 legs, So how many total legs for 3 spiders?
Ans: Here, one spider has 8 legs.
Total number of spiders = 3
Then, the total number of legs for 3 spiders = (8 + 8 + 8)
= 3 x 8 = 24
Therefore, the total number of legs for 3 spiders is 24.
How to Find Numbers Without Counting
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Here we find the number of flowers in the flower bed without counting them one by one.
The flower bed has 4 columns and each column has 6 flowers so the total number of flowers will be 4 times 6.
The total number of flowers in the flower bed = $4\times 6= 24$ flowers.
Jumping the Number
3 Steps each time: In every step, the number is increased by 3.
4 Steps each time In every step the number is increased by 4.
7 Steps each time In every step the number is increased by 7.
Solved Example 5: Find the missing number in 100, 104, 108, ……., 116, 120.
Ans: The difference between 104 and 100 is 4, likewise between 108 and 104 is 4. So, we can say that in every step the number is increased by 4. Therefore the pattern is the difference between two consecutive numbers is 4 and hence the next number after 108 is ( 108 + 4 ) = 112.
Therefore the required pattern is
100 , 104 , 108 , 112, 116 , 120.
Stick Play
In this play, we take some sticks and arrange them horizontally and vertically then we figure how many times sticks are crossing each other.
Also, we can make tables by using sticks.
Sticky Play
Here, 5 Sticks vertically and 4 sticks horizontally are placed and they are crossing each other 4 times 5.
Solved Example 6: How many different arrangements are possible for 24 sticks.
Ans: To find possible stick arrangements in 24 sticks. First, you need to find all possible multiples of 24: 2, 4, 6, 8, 12, 24.
Possible arrangements 212, 38, 64, 122, 83, 46.
Multiplication Table of 2
Practice Question
Q1. Sonu bought 5 packets of biscuits. Each packet has 6 biscuits. How many biscuits did Ramu buy?
Q2. In the figure below, find how many 2 in each row.
Arrangement of Birds
Q3. How much do 3 pencil boxes cost in rupees?
Pencil Box
Answer:
Ans: 1. 5 times 6 Sonu brought 30 biscuits.
Ans: 2.
Row 1 one time 2.
Row 2 two times 2.
Row 3 three times 2.
Row 4 four times 2.
Row 5 five times 2.
Ans: 3.
The cost of 3 pencil boxes will be 30 rupees.
Given that each pencil box cost = Rs. 10.
So, the Cost for 3 pencil boxes = 3 times Rs. 10.
Therefore the cost of 3 pencil boxes will be 30 rupees.
Importance of CBSE Class 3 Maths Chapter 9 How Many Times
This unique chapter has been formulated using stories and descriptions of animals. Children will get to practice the basic concepts of multiplication and leggy animals.
They will also learn how to count the flowers and other objects in a stack by using the method of multiplication. In fact, the concepts explained by the experts will also help them realise how repetitive addition can be done using a multiplication method.
On proceeding further, the chapter will also explain how to multiply the same numbers mentioned in a sum with its repetition to get an answer.
The next sections and exercises will explain to students how the arithmetic problems can be solved using the same concepts. In these sections, they will learn how to deduce the numbers from the given information and operate mathematically to find the right answers.
In this chapter, students will learn how to perform 3rd Class multiplication at this level by following the technical words mentioned in the problems.
Benefits of Vedantu’s How Many Times Class 3 Worksheets and Revision Notes
By using the revision notes and worksheets of this chapter, you will gain the following benefits.
1. Explanation of repetitive addition with multiplication
2. Solving and understanding the question patterns emphasised by the CBSE board
3. Learning how to relate and utilise the tables of single-digit numbers easily
4. Understanding the simplest methods of solving questions by following the steps explained by the subject experts
5. Precise explanation of all the conceptual sections in a comprehensible language for quick revision before an exam
6. Availing of a practice platform by solving worksheets formulated by experts
7. Evaluation of your conceptual knowledge and mathematical skills based on this chapter.
Download the Class 3 Maths Chapter 9 PDF and add it to your study material. Finish studying this chapter in accordance with school and revise it using these notes. Solve the worksheets once you are done with the chapter exercises.
Solving How Many Times Class 3 Made Easier with Vedantu
The Class 3 CBSE Maths Chapter 9 notes on 'How Many Times' are a fundamental resource introducing young minds to the concept of multiplication. These notes provide a clear understanding of repeated addition as a foundation for multiplication, fostering a strong numerical base. Exploring this chapter aids in comprehending the essence of multiplication, paving the way for advanced mathematical concepts. Through interactive exercises and explanations, these notes not only enhance mathematical skills but also instill confidence in young learners, enabling them to tackle mathematical problems with ease. Mastering 'How Many Times' marks a significant step toward numerical fluency and a deeper grasp of mathematical operations for students at this level.
Study Materials for CBSE Class 3 Maths
FAQs on Cbse Class 3 Maths Notes Chapter 9 How Many Times
1. How do these revision notes summarise the main idea of Chapter 9, 'How Many Times'?
These revision notes for CBSE Class 3 Maths summarise Chapter 9 by explaining that multiplication is a quick way of doing repeated addition. The notes use simple examples, like counting objects in groups, to show how 'times' means adding a number to itself a certain number of times. This helps in understanding the core concept for a quick revision.
2. What is multiplication as explained for a Class 3 student?
Multiplication is a simple mathematical operation used when you need to add the same number repeatedly. For example, instead of writing 4 + 4 + 4, you can simply write 3 times 4, which is 3 x 4 = 12. These notes explain this concept using fun pictures and easy-to-follow stories.
3. How do multiplication tables help in revising this chapter?
Multiplication tables are a key tool for this chapter. They are a ready-made list of answers for repeated additions. By learning the tables, you can find the product of two numbers instantly without having to add them over and over again. These revision notes emphasise using tables to solve problems faster.
4. Why is it important to learn multiplication instead of just using repeated addition?
Learning multiplication is important because it is much faster and more efficient than repeated addition, especially with bigger numbers. Imagine adding the number 8 twenty times; it would take a long time and you might make a mistake. With multiplication, you can just calculate 8 x 20. It helps build a strong foundation for future maths topics.
5. What are the key terms to remember from the 'How Many Times' revision notes?
For a quick revision of this chapter, you should focus on these key terms:
Times: Refers to how many repetitions of a number are being added.
Multiplication (x): The process of repeated addition.
Product: The final answer you get after multiplying two numbers.
Repeated Addition: Adding the same number again and again.
6. How is skip counting (e.g., 2, 4, 6, 8...) related to the concepts in this chapter?
Skip counting is the secret behind multiplication tables. When you skip count by 2s, you are actually listing the answers of the 2-times table (1x2=2, 2x2=4, 3x2=6). It is a practical way to see the pattern of repeated addition. These notes help you see this connection to make learning tables easier.
7. How do the examples in these revision notes help me prepare for tests?
The revision notes use visual examples, like rows of flowers or legs on spiders, to turn abstract maths into real-world scenarios. This helps you understand how to read a word problem and figure out which numbers to multiply. By revising these examples, you can quickly recognise the types of questions that might appear in an exam.
8. What is a common mistake to avoid when learning concepts from 'How Many Times'?
A common mistake is getting confused between addition and multiplication signs in word problems. For example, '4 more than 3' means 3 + 4, but '4 times 3' means 3 x 4. Always read the question carefully to see if you need to add once or do a repeated addition (multiplication). These revision notes provide clear examples to help avoid this confusion.
