Sri LankaGrade 7 Sri Lanka School Math Vertically Opposite Angles
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Master this topic as part of Types of Angles
1.7.3. Division Of Rational Numbers
2. Integers
2.4. Comparing Integers
2.7.1.1. Addition of Integers
2.7.1.3. Properties of Addition of Integers
2.7.1.4. Subtraction of Integers
2.7.2.1. Multiplication of Integers
2.7.2.3. Division of Integers
2.7.2.4. Properties of Division of Integers
2.7.3. Mixed Operations of Integers
2.7.4. Word Problems on Integers
3. Fractions
3.2. Unit Fraction
3.4. Equivalent Fractions
3.6. Comparing Fractions
3.6.1. Comparing Like Fractions
3.6.3. Comparing Unlike Fractions
3.7.1. Addition of Fractions
3.7.1.1. Addition of Like Fractions
3.7.1.2. Addition of Unlike Fractions
3.7.1.3. Addition of Mixed Fractions
3.7.2. Subtraction of Fractions
3.7.2.1. Subtraction of Like Fractions
3.7.2.2. Subtraction of Unlike Fractions
3.7.2.3. Subtraction of Mixed Fractions
3.7.4. Multiplication of Fractions
3.7.4.2. Use of 'OF'
3.7.5. Division of Fractions
3.7.5.1. Reciprocal of a Fraction
4. Decimals
4.3. Place Value Chart
4.6. Equivalent Decimals
4.7. Comparing Decimals
4.8. Ordering Decimals
4.9.1.1. Convert Decimals to Proper Fractions
4.9.1.3. Convert Decimals to Mixed Fractions
4.12.1. Multiplication of Decimals
4.12.1.3. Multiplication of Two/Three Decimals
4.12.2. Division of Decimals
4.12.2.3. Division of a Decimal by a Whole Number
4.12.2.4. Division of a Decimal by a Decimal
4.12.2.5. Division of a Whole Number by a Decimal
4.12.2.6. Word Problems on Division of a Decimal
4.12.2.7. Mixed Operations on Decimals
5.1. Ratio
5.1.1. Terms of a Ratio
5.1.2. Equivalent Ratio
5.1.3. Ratio in the Simplest Form
5.1.5. Comparison of Ratios
5.1.6. Miscellaneous on Ratio
7. Percentage
7.1. Conversions
10. Exponents
10.5. Laws of Exponents
11.1. Variables and Constants
11.3.4.1. Multiplication of Monomials
11.3.4.3. Multiplication of two Binomials
13. Mensuration
13.1. Standard Units of Area
14. Geometry
14.1. Lines and Angles
14.1.1. Types of Angles
14.1.1.1. Complementary and Supplementary Angles
14.1.1.2. Linear Pair of Angles
14.1.1.3. Vertically Opposite Angles
14.1.1.4. Angles Around a Point
14.2. Triangles
14.2.3. Properties of a Triangle
14.2.3.1. Angle Sum Property of a Triangle
14.2.3.2. Exterior Angle Property of a Triangle
14.2.3.3. Triangle Inequality
14.2.3.4. Pythagoras' Theorem
14.3. Congruence
14.3.1. Understanding the Meaning
14.3.2. Congruence of Triangles
15.1. Linear Symmetry
15.1.1. Linear Symmetry Around Us
15.1.3. Linear Symmetry in Alphabets
15.2. Rotational Symmetry
15.2.1. Rotational Symmetry in Figures
15.2.3. Rotational Symmetry in Alphabets
17. Probability
18. Data Handling
18.2. Mean, Median, and Mode
18.2.1. Mean
18.2.1.1. Mean of Ungrouped Data
18.2.1.2. Mean of Tabulated Data
18.2.2. Median
18.2.2.1. Median of Ungrouped Data
18.2.2.2. Median of Discrete Series
18.2.3. Mode
18.2.3.1. Mode of Ungrouped Data
18.2.3.2. Empirical Formula for Calculating Mode
18.3. Bar Graphs
18.3.1. Drawing Bar Graphs
18.3.2. Interpreting Bar Graphs
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