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Online Quiz (Worksheet A B C D)

Questions Per Quiz = 2 4 6 8 10

MEAP Preparation - Grade 7 Mathematics
2.26 Variable

Algebra
A branch of mathematics in which symbols, usually letters of the alphabet are used to represent numbers.

A variable is a symbol that represents a number. It is denoted by letters such as x, a, b, v, y, or t. A variable can assume any of a set of values.

Example:
If a stands for the length of a square, then perimeter of the square is expressed as 4 a; and the area of the square is expressed as a x a.

Example:
The temperature of a town is given by the chart below:
Day Temperature t0
Tuesday 300
Wednesday 250
Thursday 310
Friday 310
It changes or varies but at one particular instant it has a fixed value. Hence it is represented by a variable t.


Directions: Identify the variable from the choices. Also write at least 10 examples of your own.
Q 1: Which of the following is a variable?
6
5
u
4

Q 2: Which of the following is a variable?
1
5
0
w

Q 3: Which of the following is NOT a variable?
n
34.57 inches
AB
Q

Q 4: Which of the following is a variable?
x
5
4
3

Q 5: Which of the following is NOT a variable?
R
3.5
Q
P

Q 6: Which of the following is a variable?
P
2.5
4/7
5 cm

Q 7: Which of the following is NOT a variable?
X
A
102
C

Q 8: Which of the following is a variable?
N cm
1 in
3 m
6 ft

Question 9: This question is available to subscribers only!

Question 10: This question is available to subscribers only!


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