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- Find the Unknown Variable When Three Numbers are in Proportion
Class 6 NCERT (CBSE and ICSE) Find the Unknown Variable When Three Numbers are in Proportion
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Master this topic as part of Proportion
1.2.1. Successor of a Number
1.2.2. Predecessor of a Number
1.3. n Digit Numbers
1.4. Place of a Digit
1.6.1. Addition of Large Numbers
1.6.2. Subtraction of Large Numbers
1.6.4. Division of Large Numbers
1.7. Rounding Numbers
1.7.1. Rounding off numbers
1.7.1.1. Rounding off to the nearest ten
1.7.1.2. Rounding off to the nearest hundred
1.7.1.3. Rounding off to the nearest thousand
2.2.1.1. Addition of Whole Numbers
2.2.1.3. Solving Magic Square
2.2.1.4. Subtraction of Whole Numbers
2.2.2.1. Multiplication of Whole Numbers
2.2.2.3. Division of Whole Numbers
3.1.1. Finding Factors of a Number
3.1.5. Types of Numbers
3.1.5.1. Odd and Even Numbers
3.1.5.2. Prime and Composite Numbers
3.1.5.2.1. Composite Numbers
3.1.5.2.2. Prime Numbers
3.1.5.2.3. Properties of Composite and Prime Numbers
3.1.5.3. Twin Primes
3.1.5.4. Prime Triplet
3.1.6. Co-Primes
3.1.7. Perfect Numbers
3.2.1. Test Divisibility by 2
3.2.2. Test Divisibility by 3
3.2.3. Test Divisibility by 4
3.2.4. Test Divisibility by 5
3.2.5. Test Divisibility by 6
3.2.6. Test Divisibility by 7
3.2.7. Test Divisibility by 8
3.2.8. Test Divisibility by 9
3.2.9. Test Divisibility by 10
3.2.10. Test Divisibility by 11
3.4. HCF and LCM
3.4.1. HCF (Highest Common Factor)
3.4.2. LCM (Lowest Common Multiple)
3.4.3. Properties of LCM and HCF
3.4.4. Word problems on HCF and LCM
4.3. Types of Lines
4.3.1. Parallel Lines
4.3.2. Perpendicular Lines
4.3.3. Intersecting Lines
4.3.4. Identifying the Type of Line
4.5. Angle
4.6. Triangles
4.6.1. Introduction to Triangles
4.6.2. Congruent Triangles
4.7. Curve
4.8. Polygon
4.8.1. Understanding Polygons
4.8.2. Name the Polygon
4.9. Quadrilateral
4.10. Circle
4.10.2. Terms related to a Circle
4.10.4. Concentric Circles
6. Integers
6.4. Comparing Integers
6.6.1.1. Addition of Integers
6.6.1.3. Properties of Addition of Integers
6.6.1.4. Subtraction of Integers
6.6.2.1. Multiplication of Integers
6.6.2.3. Division of Integers
6.6.2.4. Properties of Division of Integers
6.6.3. Mixed Operations on Integers
6.6.4. Word Problems on Integers
7. Fractions
7.6. Unit Fraction
7.8. Equivalent Fractions
7.10. Comparing Fractions
7.10.1. Comparing Like Fractions
7.10.3. Comparing Unlike Fractions
7.11. Operations on Fractions
7.11.1. Addition of Fractions
7.11.1.1. Addition of Like Fractions
7.11.1.2. Addition of Unlike Fractions
7.11.1.3. Addition of Mixed Fractions
7.11.1.4. Word Problems on Addition of Fractions
7.11.2. Subtraction of Fractions
7.11.2.1. Subtraction of Like Fractions
7.11.2.2. Subtraction of Unlike Fractions
7.11.2.3. Subtraction of Mixed Fractions
8. Decimals
8.3. Place Value Chart
8.6. Equivalent Decimals
8.7. Comparing Decimals
8.8. Ordering Decimals
8.9.1.1. Convert Decimals to Proper Fractions
8.9.1.3. Convert Decimals to Mixed Fractions
9.3. Pictographs
9.4. Bar graphs
9.4.1. Drawing Bar Graphs
9.4.2. Interpreting Bar Graphs
10. Mensuration
11. Algebra
11.1. Algebraic Expressions
11.1.2. Variables and Constants
11.1.4. Types of Algebraic Expressions
11.1.6.1. Addition of Algebraic Expressions
11.1.6.2. Subtraction of Algebraic Expressions
12.1. Ratio
12.1.1. Equivalent Ratio
12.1.2. Ratio in the Simplest Form
12.1.4. Comparison of Ratios
12.1.5. Word Problems on Ratio
12.2. Proportion
12.3. Unitary Method
13. Symmetry
14.1. The Circle
14.2. A Line Segment
14.3. Perpendiculars
14.4. Angles
14.4.3. Bisector of an Angle
14.4.4. Angles of Special Measures
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