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Addition: Addition of 7 to 3 is denoted by 3+7. Similarly addition of the variable 'y' to another variable 'x' is denoted by 'x+y'.
Subtraction: Subtraction of 2 from 8 is 82. Similarly subtraction of the variable 'q' from 'p' is 'pq'. Multiplication: The product of 4 and 5 is 4x5. Similarly the product of the variables 'a' and 'b' is denoted by 'axb'. axb is also written as a.b or ab. Division: 8/2 means '8 divided by 2'. Similarly 'a divided by b' is denoted by a/b. Directions: Express the following using signs of basic operations. Also write at least 10 examples of your own. 