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# Algebra worksheet for class 6

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## Symmetry worksheet for class 6 Important Topics

• Introduction
• Matchstick Patterns
• The Idea of a Variable
• More Matchstick Patterns
• More Examples of Variables
• Use of Variables in Common Rules
• Expressions with Variables
• Using Expressions Practically
• What is an Equation?
• Solution of a n Equation

## Some important Facts about Algebra worksheet for class 6

1. We looked at patterns of making letters and other shapes using matchsticks. We learnt how to write the general relation between the number of matchsticks required for repeating a given shape. The number of times a given shape is repeated varies; it takes on values 1,2,3,… . It is a variable, denoted by some letter like n.
2. A variable takes on different values, its value is not fixed. The length of a square can have any value. It is a variable. But the number of angles of a triangle has a fixed value 3. It is not a variable. 3. We may use any letter n, l, m, p, x, y, z, etc. to show a variable.
3. A variable allows us to express relations in any practical situation.
4. Variables are numbers, although their value is not fixed. We can do the operations of addition, subtraction, multiplication and division on them just as in the case of fixed numbers

## NCERT class 6  Mathematics Solved Worksheets

• Chapter 1 – Knowing Our Numbers
• Chapter 2 – Whole Numbers
• Chapter 3 – Playing with Numbers
• Chapter 4 – Basic Geometrical Ideas
• Chapter 5 – Understanding Elementary Shapes
• Chapter 6 – Integers
• Chapter 7 – Fractions
• Chapter 8 – Decimals
• Chapter 9 – Data Handling
• Chapter 10 – Mensuration
• Chapter 11 – Algebra
• Chapter 12 – Ratio and Proportion
• Chapter 13 – Symmetry
• Chapter 14 – Practical Geometry

## Expressions with Variables

Recall that in arithmetic we have come across expressions like (2 × 10) + 3, 3 × 100 + (2 × 10) + 4 etc. These expressions are formed from numbers like 2, 3, 4, 10, 100 and so on. To form expressions we use all the four number operations of addition, subtraction, multiplication and division. For example, to form (2 × 10) + 3, we have multiplied 2 by 10 and then added 3 to the product. Examples of some of the other arithmetic expressions are :

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