Perfect Your Math Fundamentals (Pre-Algebra) (Udemy.com)
Basic Math & Pre-Algebra course (prepares you for Algebra 1 & 2, High School Mathematics & other competitive exams)
Created by: Ruchi Chhabra
Last updated November 2025
What you will learn
- Integers, Fractions & Decimals
- Ratio & Direct and Inverse Proportion
- Rounding off Numbers, Estimation and approximation
- Factors & Multiples
- PEMDAS, BODMAS
- Rational Numbers & Irrational Numbers
- Percentage
- Profit & Loss, Discounts & Taxes
How it compares
Against the other 127 rated Udemy courses in Math on CourseDuck:
- Rating4.6 out of 5higher than 37% of them
- Reviews174#80 of 128 by number of reviews
- Length12.3 hourslonger than 51% of them
- Last updatedNovember 2025more recently than 58% of them
Course Description
This course is carefully designed to explain number system basics and an in-depth study of all the operations that are performed on them.
It has 90 lectures spanning 12+ hours of on-demand videos that are divided into 16 sections. Each topic is explained extensively - by solving multiple questions along with the student during the lectures. The students are also provided and encouraged to solve practice questions & quizzes provided at the end of each topic.
Topics covered in the course:
Integers
Fractions
Decimals
Factors & Multiples
PEMDAS
BODMAS
Rational Numbers
Irrational Numbers
Approximation
Significant Figures
Estimation
Percentage
Ratio
Direct and Inverse proportion
Profit & Loss
Discounts & Taxes
Here's what some students say about the course:
"The lecturer is great, she explains every concepts well and makes it easy to understand" - Maame Adwoa Obiri
"This course helped me a lot in building up my basics, I recommend this to all who have mathematics fear. It will definitely boost your confidence and interest in mathematics" - Nami Singh
"This is a great course it provides comprehensive insights to maths fundamentals. Ruchi ma'am way of explaining is awesome fundamentals and every math concept is explained in a clear and succinct manner" - Nitin
"This course is helping me to prepare for my competition exam without coaching" - Shivam Namdeo
"This is a very interesting and helpful course. Quick way to recap what you have learnt earlier and even easy to understand for the first time learners. Highly recommended" - Suvidha Mhapsekar
With this course you'll also get:
Full lifetime access to the course
Complete support for any question, clarification or difficulty you might face on the topic
Udemy Certificate of Completion available for download
30-day money back guarantee
Feel free to contact me for any questions or clarifications you might have.
I look forward to seeing you in the course! :)
Instructor Details
- 4.6 Rating
174 Reviews
Ruchi Chhabra
Masters in Applied Mathematics, Delhi University
Graduation in Mathematics Honours, Lady Shri Ram College, Delhi University
20+ years of experience in teaching Mathematics. A strong record of countless students who have scored 90% and above in the subject and many who have scored 100%.
Have taught students from classes 9th to 12th (IB AA HL/SL, IB AI HL/SL, IGCSE, ICSE, CBSE boards), competitive exams like GMAT, CAT, SAT, GRE, CPT, CLAT, NTSE, Math Olympiad and students preparing for the entrance exams of reputed schools like Mayo, Rishi Valley, Bishop Cotton, DPS, Birla etc.
More courses by Ruchi Chhabra
Perfect Your Mathematical Skills (Pre-Calculus Course) (2025)
4.5 (219 Reviews)
Provider: Udemy
Time: 19.1h
$69.99
Cambridge International A & AS Level (Pure Mathematics 1) (2025)
4.5 (192 Reviews)
Provider: Udemy
Time: 28.4h
$94.99
Master Permutations, Combinations & Probability Basics (2024)
4.6 (86 Reviews)
Provider: Udemy
Time: 10.2h
$79.99
More Math courses
Differential Equations with the Math Sorcerer (2026)
4.9 (704 Reviews)
Provider: Udemy
Time: 11.6h
$10.99
Precalculus 2: Polynomials and rational functions (2026)
4.9 (207 Reviews)
Provider: Udemy
Time: 42.1h
$74.99
Reviews
By Colie D. on 10/21/2022
I’ve enjoyed this course. I like how detailed and simple the explanations are, and so far what I’ve learned has had application in my life. Lovely course.
By Chandana on 12/14/2020
I believe 1.25= 125/100= 5/4 and not 3/4 It is in Section .7, topic number 43, some problems to solve at the end.
By Nami Singh on 7/22/2020
This course helped me a lot in building up my basics, I recommend this to all who have mathematics fear. It will definitely boost your confidence and interest in mathematics.
By Nitin on 12/31/2019
This is a great course it provides comprehensive insights to maths fundamentals. Ruchi ma'am way of explaining is awesome fundamentals and every math concept is explained in a clear and succinct manner.
By Stephany Campos on 5/1/2019
Explanation of irrational numbers is not very clear, also how do i find out if a number could be irrational or not?
By Edmund J Taras on 2/16/2019
As a senior I am revisiting long dormant concepts so as to stimulate memory and to advance to more sophisticated ideas.
By Ismeet Singh Saluja on 1/5/2019
This course is very good for everyone. Either you are a beginner in mathematics or looking to brush up your mathematical skills this course will cater to your needs. The way how HCF and LCM finding of two numbers is explained is just excellent. Also lots of example questions are solved in the course. Kudos to the instructor. The instructors knowledge in the subject is terrific and the course delivery is engaging. Looking forward for some more mathematics courses from the instructor!!!
By Ashliegh Rice on 11/26/2018
Sometimes the accent is hard to understand and the script is not exact to what is being said
By Anonymized User on 10/8/2017
This course is helping me to increase my speed with numbers and will help me with my 12th class Board preparations. This is really a good course to clear your doubts about numbers, integers and all.
By Suvidha Mhapsekar on 8/29/2017
This is a very interesting and helpful course. Quick way to recap what you have learnt earlier and even easy to understand for the first time learners. Highly recommended.
Quality Score
No CourseDuck member has rated this course yet. Taken it? Give each part a thumbs up or down.
Overall Score : 92 / 100












