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Chapters
2: Estimation
3: Numbers in India and International System (With Comparison)
4: Place Value
5: Natural Numbers and Whole Numbers (Including Patterns)
6: Negative Numbers and Integers
7: Number Line
8: HCF and LCM
9: Playing with Numbers
10: Sets
11: Ratio
12: Proportion (Including Word Problems)
13: Unitary Method
14: Fractions
15: Decimal Fractions
16: Percent (Percentage)
17: Idea of Speed, Distance and Time
18: Fundamental Concepts of algebra
19: Fundamental Operations (Related to Algebraic Expressions)
20: Substitution (Including Use of Brackets as Grouping Symbols)
▶ 21: Framing Algebraic Expressions (Including Evaluation)
22: Simple (Linear) Equations (Including Word Problems)
23: Fundamental Concepts geometry
24: Angles (With their Types)
25: Properties of Angles and Lines (Including Parallel Lines)
26: Triangles (Including Types, Properties and Constructions)
27: Quadrilateral
28: Polygons
29: The Circle
30: Revision Exercise Symmetry (Including Constructions on Symmetry)
31: Recognition of Solids
32: Perimeter and Area of Plane Figures
33: Data Handling (Including Pictograph and Bar Graph)
34: Mean and Median
![Selina solutions for Mathematics [English] Class 6 chapter 21 - Framing Algebraic Expressions (Including Evaluation) - Shaalaa.com](/images/mathematics-english-class-6_6:44f3c4f6e33345f4bf41a86d406bf37f.jpg "Selina solutions for Mathematics [English] Class 6 chapter 21 - Framing Algebraic Expressions (Including Evaluation)")
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Solutions for Chapter 21: Framing Algebraic Expressions (Including Evaluation)
Below listed, you can find solutions for Chapter 21 of CISCE Selina for Mathematics [English] Class 6.
Selina solutions for Mathematics [English] Class 6 21 Framing Algebraic Expressions (Including Evaluation) Exercise 21
Write in the form of an algebraic expression:
Perimeter (P) of a rectangle is two times the sum of its length (l) and its breadth (b).
Write in the form of an algebraic expression:
Perimeter (P) of a square is four times its side.
Write in the form of an algebraic expression:
Area of a square is square of its side.
Write in the form of an algebraic expression:
Surface area of a cube is six times the square of its edge.
Express the following as an algebraic expression:
The sum of x and y minus m.
Express the following as an algebraic expression:
The product of x and y divided by m.
Express the following as an algebraic expression:
The subtraction of 5m from 3n and then adding 9p to it.
Express the following as an algebraic expression:
The product of 12, x, y and z minus the product of 5, m and n.
Express the following as an algebraic expression:
Sum of p and 2r – s minus sum of a and 3n + 4x.
Construct a formula for the following:
Total wages (₹ W) of a man whose basic wage is (₹ B) for t hours week plus (₹ R) per hour, if he Works a total of T hours.
If x = 4, evaluate:
3x + 8
If x = 4, evaluate:
x2 – 2x
If x = 4, evaluate:
`"x"^2/2`
If m – 6, evaluate:
5m − 6
If m – 6, evaluate:
2m2 + 3m
If m – 6, evaluate:
(2m)2
If x = 4, evaluate:
12x + 7
If x = 4, evaluate:
5x2 + 4x
If x = 4, evaluate:
`"x"^2/8`
If m = 2, evaluate:
16m – 7
If m = 2, evaluate:
15m2 – 10m
If m = 2, evaluate:
`1/4xx"m"^3`
If x = 10, evaluate:
100x + 225
If x = 10, evaluate:
6x2 – 25x
If x = 10, evaluate:
`1/50xx"x"^3`
If a = – 10, evaluate:
5a
If a = – 10, evaluate:
a2
If a = – 10, evaluate:
a3
If x = – 6, evaluate:
11x
If x = – 6, evaluate:
4x2
If x = – 6, evaluate:
2x3
If m = – 7, evaluate:
12m
If m = – 7, evaluate:
2m2
If m = – 7, evaluate:
2m3
Find the average (A) of four quantities p, q, r and s. If A = 6, p = 3, q = 5 and r = 7; find the value of s.
If a = 5 and b = 6, evaluate:
3ab
If a = 5 and b = 6, evaluate:
6a2b
If a = 5 and b = 6, evaluate:
2b2
If x = 8 and y = 2, evaluate:
9xy
If x = 8 and y = 2, evaluate:
5x2y
If x = 8 and y = 2, evaluate:
(4y)2
If x = 5 and y = 4, evaluate:
8xy
If x = 5 and y = 4, evaluate:
3x2y
If x = 5 and y = 4, evaluate:
3y2
If y = 5 and z = 2, evaluate:
100yz
If y = 5 and z = 2, evaluate:
9y2z
If y = 5 and z = 2, evaluate:
5y2
If y = 5 and z = 2, evaluate:
(5z)3
If x = 2 and y = 10, evaluate:
30xy
If x = 2 and y = 10, evaluate:
50xy2
If x = 2 and y = 10, evaluate:
(10x)2
If x = 2 and y = 10, evaluate:
5y2
If m = 3 and n = 7, evaluate:
12mn
If m = 3 and n = 7, evaluate:
5mn2
If m = 3 and n = 7, evaluate:
(10m)2
If m = 3 and n = 7, evaluate:
4n2
If a = − 10, evaluate:
3a – 2
If a = − 10, evaluate:
a2 + 8a
If a = − 10, evaluate:
`1/5xx"a"^2`
If x = − 6, evaluate:
4x – 9
If x = − 6, evaluate:
3x2 + 8x
If x = − 6, evaluate:
`"x"^2/2`
If m = − 8, evaluate:
2m + 21
If m = − 8, evaluate:
m2 + 9m
If m = − 8, evaluate:
`"m"^2/4`
If p = − 10, evaluate:
6p + 50
If p = − 10, evaluate:
3p2 – 20p
If p = − 10, evaluate:
`"p"^2/50`
If y = − 8, evaluate:
6y + 53
If y = − 8, evaluate:
y2 + 12y
If y = − 8, evaluate:
`"y"^3/4`
If x = 2 and y = − 4, evaluate:
11xy
If x = 2 and y = − 4, evaluate:
5x2y
If x = 2 and y = − 4, evaluate:
(5y)2
If x = 2 and y = − 4, evaluate:
8x2
If m = 9 and n = − 2, evaluate 4mn
If m = 9 and n = − 2, evaluate 2m2n
If m = 9 and n = − 2, evaluate (2n)3
If m = − 8 and n = − 2, evaluate:
12mn
If m = − 8 and n = − 2, evaluate:
3m2n
If m = − 8 and n = − 2, evaluate:
(4n)2
If x = − 5 and y = − 8, evaluate:
4xy
If x = − 5 and y = − 8, evaluate:
2xy2
If x = − 5 and y = − 8, evaluate:
4x2
If x = − 5 and y = − 8, evaluate:
3y2
Find T, if T = 2a – b, a = 7 and b = 3.
From the formula B = 2a2 – b2, calculate the value of B when a = 3 and b = − 1.
The wages ₹ W of a man earning ₹ x per hour for t hours are given by the formula W = xt. Find his wages for working 40 hours at a rate of ₹ 39.45 per hour.
The temperature in the Fahrenheit scale is represented by F and the temperature in the Celsius scale is represented by C. If F = `9/5` × C + 32, find F when C = 40.
Solutions for 21: Framing Algebraic Expressions (Including Evaluation)
Selina solutions for Mathematics [English] Class 6 chapter 21 - Framing Algebraic Expressions (Including Evaluation)
Shaalaa.com has the CISCE Mathematics Mathematics [English] Class 6 CISCE solutions in a manner that help students grasp basic concepts better and faster. The detailed, step-by-step solutions will help you understand the concepts better and clarify any confusion. Selina solutions for Mathematics Mathematics [English] Class 6 CISCE 21 (Framing Algebraic Expressions (Including Evaluation)) include all questions with answers and detailed explanations. This will clear students' doubts about questions and improve their application skills while preparing for board exams.
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Concepts covered in Mathematics [English] Class 6 chapter 21 Framing Algebraic Expressions (Including Evaluation) are Evaluation of Algebraic Expressions by Substituting a Value for the Variable., Algebraic Expressions.
Using Selina Mathematics [English] Class 6 solutions Framing Algebraic Expressions (Including Evaluation) exercise by students is an easy way to prepare for the exams, as they involve solutions arranged chapter-wise and also page-wise. The questions involved in Selina Solutions are essential questions that can be asked in the final exam. Maximum CISCE Mathematics [English] Class 6 students prefer Selina Textbook Solutions to score more in exams.
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