PPT: Algebraic Expressions | Mathematics (Maths) Class 7 (Old NCERT) PDF Download

 Page 1


A L G E B R A I C
E X P R E S S I O N S
CLASS 7
Page 2


A L G E B R A I C
E X P R E S S I O N S
CLASS 7
What is an expression?
Any mathematical expression which consists of
numbers, variables and operations are called Algebraic
Expression. 
Example:  
5x+2y=7
Page 3


A L G E B R A I C
E X P R E S S I O N S
CLASS 7
What is an expression?
Any mathematical expression which consists of
numbers, variables and operations are called Algebraic
Expression. 
Example:  
5x+2y=7
Before learning more about algebraic expressions!
What does a² mean?
This tells us that a is multiplied
by itself two times.
So, a² means a x a
a²
base number
exponent
Do you know what are
exponents?
Page 4


A L G E B R A I C
E X P R E S S I O N S
CLASS 7
What is an expression?
Any mathematical expression which consists of
numbers, variables and operations are called Algebraic
Expression. 
Example:  
5x+2y=7
Before learning more about algebraic expressions!
What does a² mean?
This tells us that a is multiplied
by itself two times.
So, a² means a x a
a²
base number
exponent
Do you know what are
exponents?
Important Terms
Terms
Factors
Coefficient
Variable
Page 5


A L G E B R A I C
E X P R E S S I O N S
CLASS 7
What is an expression?
Any mathematical expression which consists of
numbers, variables and operations are called Algebraic
Expression. 
Example:  
5x+2y=7
Before learning more about algebraic expressions!
What does a² mean?
This tells us that a is multiplied
by itself two times.
So, a² means a x a
a²
base number
exponent
Do you know what are
exponents?
Important Terms
Terms
Factors
Coefficient
Variable
What are Terms and Factors?
F a c t o r s: Every term is formed by the
product of the factors
T e r m s: Every expression is separated by
an operation which is called Terms.