- Simplification and Calculations
- Square and Cube Roots
- Numbers
- HCF and LCM of Numbers
- Ratio and Proportions
- Percentages
- Partnership, Profit and Loss
- Allegation and Mixtures
- Simple and Compound Interest
- Time and Work
- Time and Distance
- Volume and Surface Area
- Permutation-Combination and Probability
- Averages
- Sequence and Series
- Geometry Basic and Advanced
- Algebra
- Logarithm
- Trigonometry
- Coordinate Geometry
- Straight Lines

* Digital root *: Sum of digits till you get a single digit is known as digital root or sum.

IN this video students will learn the tricks for fast calculations. How to add and subtract simultaneously. How we can add and subtract 2,3,4 or 5 or more digit numbers ? Horizontal addition and subtraction. In competitive exams we always have scarcity of time so time saving math techniques are really essential to learn. Watch the video and learn simple tricks to calculate faster.

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In this video students will learn tricks to add and subtract decimal numbers when numbers are written in horizontal manner. Learn the shortcut trick to calculate faster. If you are appearing for competitive exams , try that you don't have to copy the numbers, try to srite only final digits one by one. This way you will be able to speed up your calculations. Always do calculations in your mother tongue, you will be more comfortable.

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