Best Study Material for Class 8 Exam
Class 8 Exam > Class 8 Notes > Important Questions: Playing with Numbers
Important Questions for Class 8 Maths - Playing with Numbers
Extra Questions
Question 1: If 51x3 is a multiple of 9, where x is a digits, then what is the value of x?
Solution: We have the sum of the digits of 51x3
= 5 + 1 + x + 3 = 9 + x
Since, 51x3 is divisible by 9.
∴ (9 + x) must be divisible by 9.
∴ (9 + x) must be equal to 0 or 9 or 18 or 27 or …
But x is a digit, then
9 + x = 9 ⇒ x = 0
9 + x = 18 ⇒ x = 9
x = 27 ⇒ x = 18, which is not possible.
∴ The required value of x = 0 or 9.
Question 2: If 27x is a multiple of 3 and x is a digit then find the value of x.
Solution: Sum of the digits of 27x
= 2 + 7 + x = 9 + x
Since, 27x is a multiple of 3,
∴ (9 + x) is divisible by 3.
⇒ 9 + x must be equal to 9 or 12 or 15
When 9 + x = 9 ⇒ x = 0
When 9 + x = 12 ⇒ x = 3
When 9 + x = 15 ⇒ x = 6
When 9 + x = 18 ⇒ x = 9
When 9 + x = 21 ⇒ x = 12, which is not possible. [∵ x is a digit]
The x can equal to 0, 3, 6 or 9.
Practice Exercise
Question 1. Write the following numbers in the generalized form:
(i) 65 (ii) 605
Answer: (i) 60 + 5 (ii) 600 + 0 + 5
Question 2. Write the following numbers in usual form:
(i) 7 x 100 + 10 x 5 + 9 x 1 (ii) 4 x 100 + 10 x 0 + 7 x 1
Answer: (i) 759 (ii) 407
Question 3. Is 307 divisible by 9?
Answer: No
Question 4. Is 1125 divisible by 3?
Answer: Yes
Question 5. Is 10011 divisible by 3?
Answer: Yes
Question 6. If 42x5 is a multiple of 9 and x is a digit, then find the value of x.
Answer: x = 7
Question 7. If 3x12 is a multiple of 3 and x is digit, then find the value of x.
Answer: x = 0 or 3 or 6 or 9
Question 8. If 35x is a multiple of 9 and x is digit, then find the value of x.
Answer: x = 1
FAQs on Important Questions for Class 8 Maths - Playing with Numbers
| 1. What is the importance of the Playing with Numbers class 8? |  |
| 2. How can playing with numbers benefit class 8 students? | |
Ans. Playing with numbers can benefit class 8 students by improving their mathematical skills and understanding. It allows them to explore number patterns, develop mental math strategies, and strengthen their problem-solving abilities.
| 3. What are some examples of activities in the Playing with Numbers class 8? | |
Ans. Some examples of activities in the Playing with Numbers class 8 include solving number puzzles, playing math games, exploring number patterns, and solving real-life word problems related to numbers.
| 4. How does the Playing with Numbers class 8 help in exam preparation? | |
Ans. The Playing with Numbers class 8 helps in exam preparation by providing students with a solid foundation in number concepts and operations. It allows them to practice various problem-solving techniques and gain confidence in tackling math questions.
| 5. Are there any online resources available for the Playing with Numbers class 8? | |
Ans. Yes, there are many online resources available for the Playing with Numbers class 8. These resources include interactive math games, practice worksheets, video tutorials, and online quizzes to help students reinforce their learning and prepare for exams.
Related Exams
About this Document
4.60/5
Rating
Apr 03, 2025
Last updated
Document Description: Important Questions: Playing with Numbers for Class 8 2025 is part of Class 8 preparation. The notes and questions for Important Questions: Playing with Numbers have been prepared according to the Class 8 exam syllabus. Information about Important Questions: Playing with Numbers covers topics like and Important Questions: Playing with Numbers Example, for Class 8 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for Important Questions: Playing with Numbers.
Introduction of Important Questions: Playing with Numbers in English is available as part of
our Class 8 preparation & Important Questions: Playing with Numbers in Hindi for Class 8
courses. Download more important topics, notes, lectures and mock test series for Class 8
Exam by signing up for free. Class 8: Important Questions for Class 8 Maths - Playing with Numbers
Description
Full syllabus notes, lecture & questions for Important Questions for Class 8 Maths - Playing with Numbers - Class 8 | Plus excerises question with solution to help you revise complete syllabus | Best notes, free PDF download
Information about Important Questions: Playing with Numbers
In this doc you can find the meaning of Important Questions: Playing with Numbers defined & explained in the simplest way possible.
Besides explaining types of Important Questions: Playing with Numbers theory,
EduRev gives you an ample number of questions to practice Important Questions: Playing with Numbers tests, examples and also practice Class 8 tests.
Download as PDF
Top Courses for Class 8
Related Searches
Sample Paper
,study material
,MCQs
,Objective type Questions
,Extra Questions
,ppt
,video lectures
,Important Questions for Class 8 Maths - Playing with Numbers
,practice quizzes
,Important questions
,Important Questions for Class 8 Maths - Playing with Numbers
,Important Questions for Class 8 Maths - Playing with Numbers
,Free
,Previous Year Questions with Solutions
,Summary
,Semester Notes
,mock tests for examination
,Viva Questions
,past year papers
,Exam
,shortcuts and tricks
;
Additional Information about Important Questions: Playing with Numbers for Class 8 Preparation
Important Questions: Playing with Numbers Free PDF Download
The Important Questions: Playing with Numbers is an invaluable resource that delves deep into the core of the Class 8 exam.
These study notes are curated by experts and cover all the essential topics and concepts, making your preparation more efficient and effective.
With the help of these notes, you can grasp complex subjects quickly, revise important points easily,
and reinforce your understanding of key concepts. The study notes are presented in a concise and easy-to-understand manner,
allowing you to optimize your learning process. Whether you're looking for best-recommended books, sample papers, study material,
or toppers' notes, this PDF has got you covered. Download the Important Questions: Playing with Numbers now and kickstart your journey towards success in the Class 8 exam.
Importance of Important Questions: Playing with Numbers
The importance of Important Questions: Playing with Numbers cannot be overstated, especially for Class 8 aspirants.
This document holds the key to success in the Class 8 exam.
It offers a detailed understanding of the concept, providing invaluable insights into the topic.
By knowing the concepts well in advance, students can plan their preparation effectively.
Utilize this indispensable guide for a well-rounded preparation and achieve your desired results.
Important Questions: Playing with Numbers Notes
Important Questions: Playing with Numbers Notes offer in-depth insights into the specific topic to help you master it with ease.
This comprehensive document covers all aspects related to Important Questions: Playing with Numbers.
It includes detailed information about the exam syllabus, recommended books, and study materials for a well-rounded preparation.
Practice papers and question papers enable you to assess your progress effectively.
Additionally, the paper analysis provides valuable tips for tackling the exam strategically.
Access to Toppers' notes gives you an edge in understanding complex concepts.
Whether you're a beginner or aiming for advanced proficiency, Important Questions: Playing with Numbers Notes on EduRev are your ultimate resource for success.
Important Questions: Playing with Numbers Class 8
The "Important Questions: Playing with Numbers Class 8 Questions" guide is a valuable resource for all aspiring students preparing for the
Class 8 exam. It focuses on providing a wide range of practice questions to help students gauge
their understanding of the exam topics. These questions cover the entire syllabus, ensuring comprehensive preparation.
The guide includes previous years' question papers for students to familiarize themselves with the exam's format and difficulty level.
Additionally, it offers subject-specific question banks, allowing students to focus on weak areas and improve their performance.
Study Important Questions: Playing with Numbers on the App
Students of Class 8 can study Important Questions: Playing with Numbers alongwith tests & analysis from the EduRev app,
which will help them while preparing for their exam. Apart from the Important Questions: Playing with Numbers,
students can also utilize the EduRev App for other study materials such as previous year question papers, syllabus, important questions, etc.
The EduRev App will make your learning easier as you can access it from anywhere you want.
The content of Important Questions: Playing with Numbers is prepared as per the latest Class 8 syllabus.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup