Class 7 Maths
Algebraic Expressions
Question 1:
Write two algebraic expressions in two variables and explain the terminology.
Question 2:
Write factors of expression
2a2 + 3ab + 5b2
Question 3:
Write the algebraic expressions from below description:
Sum of square of number a and b subtracted from their product and added to 5.
Question 4:
Draw a tree diagram for the below algebraic expression showing its terms and factors.
-x2 -xy + 5y2
Question 5:
Give an example each of mononomial, binomial, trinomial and polynomial.
Question 6:
Classify below as Like and Unlike terms.
a) y and 25y
b) x and xy
c) -ab and -15ab
Question 7:
Add the below algebraic expressions:
a2 + 9ab -3b2 + 10 and
-7a2 -2ab + 5b2 -19
Question 8:
Subtract 12xy – 7y – 3x from 15xy + 9y + 13x
Question 9:
What should be subtracted from 7a2 – 2b2 + 4ab + 12 to obtain a2 –5b2 + 16ab - 10?
Question 10:
Find the value of below expressions when z = -3
2z3 + 3z2 + 4z -7
Question 11:
Find the value of below expression for x = 2, y = 3.
x3 + 3xy +y2 – 12
Question 12:
Find the value of y if the value of 2x3 + x2 – y equals to 15, when x = 1.
Question 13:
Given an algebraic expression 2n2 +3n -5 for a number pattern, find the 1st, 4th and 20th term.
Question 14:
Find the value of a if the value of 3a2 + 5ab – b2 equals to 15, when b = 3.
Question 15:
The number of sticks needed to form n shapes of H is given by algebraic expressions below. How many sticks are required to make 5 shapes of H.
Question 16:
Given an algebraic expression n3 +n2 +c for a number pattern.
If the 2nd term is 25, find the 5th term.
Question 17:
Add the below algebraic expressions:
3x3 + 2xy -8y2 + 1 and
-5x3 -7xy + 9y -9
Question 18:
Identify in the given expressions, terms which are not constants. Give their numerical coefficients.
(i) 5x – 3
(ii) 11 – 2y2
(iii) 2x – 1
(iv) 4x2y + 3xy2 – 5
Question 19:
The number of sticks needed to form n shapes of F is given by algebraic expressions below. How many sticks are required to make 50 shapes of F.
Question 20:
Classify the following into monomials, binomial and trinomials.
(i) -6
(ii) -5 + x
(iii) 32x – y
(iv) 6x2 + 5x – 3
(v) z2 + 2
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All About Daily Practice Problems on Class 7 Maths Algebraic Expressions NCERT Chapter 12
Our Daily Practice Problems (DPPs) offer a diverse range of question types, including Multiple Choice Questions (MCQs) as well as short and long answer types. These questions are categorized into Easy, Moderate, and Difficult levels, allowing students to gradually progress and challenge themselves accordingly. Additionally, comprehensive solutions are provided for each question, available for download in PDF format - Download pdf solutions as well as Download pdf Questions. This approach fosters a holistic learning experience, catering to different learning styles, promoting self-assessment, and improving problem-solving skills. With our well-structured DPPs, students can excel in exams while gaining a deeper understanding of the subject matter. Hope you found the content on Class 7 Maths Algebraic Expressions NCERT Chapter 12 useful.
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