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High School Mathematics
1.13 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 subtraction of 3 from 2x.
3-2x
2x+3
2x-3

Q 2: The quotient of 9 and p.
9/p
9p
9+p

Q 3: The product of 9 and x.
9-x
9x
x-9

Q 4: The subtraction of 2x from 3.
2x-3
2x+3
3-2x

Q 5: 9 less than q.
q+9
9q
q-9

Q 6: 3 increased by x.
3+x
3x
3-x

Q 7: 5 decreased by p.
5+p
5p
5-p

Q 8: The sum of p and q.
p+q
pq
p-q

Question 9: This question is available to subscribers only!

Question 10: This question is available to subscribers only!


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