Module 1 · Class 9 Olympiad · Formula Sheet

Number Systems Formulas — Class 9 Olympiad

Classify real numbers, represent irrationals on the number line, rationalize denominators, and apply laws of exponents.

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Worked Examples

1Using: Place Value

Find the place value of 6 in 3,65,421.

Step 1: 6 is in the ten-thousands place.

Step 2: Place value = 6 x 10,000 = 60,000.

Answer: 60,000

2Using: Successor

Find the successor of 9,999.

Step 1: Successor = n + 1

Step 2: = 9,999 + 1 = 10,000.

Answer: 10,000

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More Class 9 Olympiad Formulas

PolynomialsCoordinate GeometryLinear Equations in Two VariablesLines and AnglesTrianglesQuadrilaterals

Frequently Asked Questions

How many formulas are in Class 9 Olympiad Number Systems?+
There are several key formulas in the Number Systems chapter for Class 9 Olympiad. Each formula is essential for solving problems in this topic.
How to remember Number Systems formulas easily?+
Practice regularly with worked examples, group related formulas together, and use SparkEd's interactive practice mode to reinforce your memory through problem-solving.
Are these Number Systems formulas enough for exams?+
Yes, these formulas cover the complete Olympiad Class 9 syllabus for Number Systems. Practice applying them to different types of questions for full exam readiness.

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SparkEd Maths provides free formula sheets for Class 1-10 across 7 education boards. All formulas are aligned to the 2025-26 syllabus.