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MEAP Preparation - Grade 7 Mathematics2.31 Basic Operations With Variables - I

 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 8-2. Similarly subtraction of the variable 'q' from 'p' is 'p-q'. 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.
 Q 1: The product of 9 and x.9x9-xx-9 Q 2: The product of 2y and 5.10y2y+52y/5 Q 3: 5 decreased by p.5+p5p5-p Q 4: The quotient of 9 and p.9p9+p9/p Q 5: The sum of p and q.pqp-qp+q Q 6: 9 less than q.q+99qq-9 Q 7: 3 increased by x.3+x3-x3x Q 8: The subtraction of 2x from 3.2x-32x+33-2x Question 9: This question is available to subscribers only! Question 10: This question is available to subscribers only!