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Chapters
2: Rational Numbers
3: Fractions (Including Problems)
4: Decimal Fractions (Decimals)
▶ 5: Exponents (Including Laws of Exponents)
6: Ratio and Proportion (Including Sharing in a Ratio)
7: Unitary Method (Including Time and Work)
8: Percent and Percentage
9: Profit, Loss and Discount
10: Simple Interest
11: Fundamental Concepts (Including Fundamental Operations)
12: Simple Linear Equations (Including Word Problems)
13: Set Concepts (Some Simple Divisions by Vedic Method)
14: Lines and Angles (Including Construction of angles)
15: Triangles
16: Pythagoras Theorem
17: Symmetry (Including Reflection and Rotation)
18: Recognition of Solids (Representing 3-D in 2-D)
19: Congruency: Congruent Triangles
20: Mensuration
21: Data Handling
22: Probability
![Selina solutions for Concise Mathematics [English] Class 7 ICSE chapter 5 - Exponents (Including Laws of Exponents) - Shaalaa.com](/images/concise-mathematics-english-class-7-icse_6:880cdcd6265b4864b6486afbf92875b0.jpg "Selina solutions for Concise Mathematics [English] Class 7 ICSE chapter 5 - Exponents (Including Laws of Exponents)")
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Solutions for Chapter 5: Exponents (Including Laws of Exponents)
Below listed, you can find solutions for Chapter 5 of CISCE Selina for Concise Mathematics [English] Class 7 ICSE.
Selina solutions for Concise Mathematics [English] Class 7 ICSE 5 Exponents (Including Laws of Exponents) Exercise 5 (A)
Find the value of: 6²
Find the value of: 73
Find the value of: 44
Find the value of: 55
Find the value of: 83
Find the value of: 75
Evaluate: 23 x 42
Evaluate: 23 x 52
Evaluate: 33 x 52
Evaluate: 22 x 33
Evaluate: 32 x 53
Evaluate: 53 x 24
Evaluate: 32 x 42
Evaluate: (4 x 3)3
Evaluate: (5 x 4)2
Evaluate: `(3/4)^4`
Evaluate: `(- 5/6)^5`
Evaluate: `((- 3)/(- 5))^3`
Evaluate: `(2/3)^3 xx (3/4)^2`
Evaluate: `(- 3/4)^3 xx (2/3)^4`
Evaluate: `(3/5)^2 xx (- 2/3)^3`
Which is greater:
23 or 32
Which is greater:
25 or 52
Which is greater:
43 or 34
Which is greater:
54 or 45
Express the following in exponential form: 512
Express the following in exponential form: 1250
Express the following in exponential form: 1458
Express the following in exponential form: 3600
Express the following in exponential form: 1350
Express the following in exponential form: 1176
If a = 2 and b = 3, find the value of: (a + b)2
If a = 2 and b = 3, find the value of: (b – a)3
If a = 2 and b = 3, find the value of: (a x b)a
If a = 2 and b = 3, find the value of: (a x b)b
Express: 1024 as a power of 2.
Express: 343 as a power of 7.
Express: 729 as a power of 3.
If 27 × 32 = 3x × 2y; find the values of x and y.
27 × 32 = 3x × 2y
27 = 3x
| 3 | 27 |
| 3 | 9 |
| 3 | 3 |
| 1 |
If 64 x 625 = 2a x 5b ; find: the values of a and b.
If 64 x 625 = 2a x 5b ; find: 2b x 5a
Selina solutions for Concise Mathematics [English] Class 7 ICSE 5 Exponents (Including Laws of Exponents) Exercise 5 (B)
Fill in the blanks:
In 52 = 25, base = _______ and index = _________.
Fill in the blank:
If index = 3x and base = 2y, the number = ______.
Evaluate: 28 ÷ 23
Evaluate: 23 ÷ 28
Evaluate: (26)0
Evaluate: (30)6
Evaluate: 83 x 8-5 x 84
Evaluate: 54 × 53 ÷ 55
Evaluate: 54 ÷ 53 x 55
Evaluate: 44 ÷ 43 x 40
Evaluate: (35 x 47 x 58)0
Simplify, giving Solution with positive index
2b6. b3. 5b4
Simplify, giving Solution with positive index
x2y3. 6x5y. 9x3y4
Simplify, giving Solution with positive index
(- a5) (a2)
Simplify, giving Solution with positive index
(- y2) (- y3)
Simplify, giving Solution with positive index
(-3)2 (3)3
Simplify, giving Solution with positive index
(- 4x) (-5x2)
Simplify, giving Solution with positive index
(5a2b) (2ab2) (a3b)
Simplify, giving Solution with positive index
x2a +7. x2a-8
Simplify, giving Solution with positive index
3y. 32. 3-4
Simplify, giving Solution with positive index
`2^"4a". 2^("3a") .2^(-"a")`
Simplify, giving Solution with positive index
4x2y2 ÷ 9x3y3
Simplify, giving Solution with positive index
(102)3 (x8)12
Simplify, giving Solution with positive index
(a10)10 (16)10
Simplify, giving Solution with positive index:
(n2)2 (- n2)3
Simplify, giving Solution with positive index
- (3ab)2 (-5a2bc4)2
Simplify, giving Solution with positive index
(-2)2 × (0)3 × (3)3
Simplify, giving Solution with positive index
(2a3)4 (4a2)2
Simplify, giving Solution with positive index
(4x2y3)3 ÷ (3x2y3)3
Simplify, giving a Solution with a positive index.
`(1/"2x")^3 xx (6"x")^2`
Simplify, giving Solution with positive index
`(1/("4ab"^2"c"))^2 div (3/(2"a"^2"bc"^2))^4`
Simplify, giving Solution with positive index
`((5"x"^7)^3 . (10"x"^2)^2)/(2"x"^6)^7 = (5^3 "x"^(7xx3) . 10^2 . "x"^(2xx2))/(2^7. "x"^(6xx7))`
Simplify, giving Solution with positive index
`((7 "p"^2 "q"^9 "r"^5)^2 (4 "pqr")^3)/(14 "p"^6 "q"^10 "r"^4)^2`
Simplify and express the Solution in the positive exponent form:
`((-3)^3 xx 2^6)/(6 xx 2^3)`
Simplify and express the Solution in the positive exponent form:
`((2^3)^5 xx 5^4)/(4^3 xx 5^2)`
Simplify and express the Solution in the positive exponent form:
`(36 xx (-6)^2 xx 3^6)/(12^3 xx 3^5)`
Simplify and express the Solution in the positive exponent form:
`- 128/2187`
Simplify and express the Solution in the positive exponent form:
`("a"^-7 xx "b"^-7 xx "c"^5 xx "d"^4)/("a"^3 xx "b"^-5 xx "c"^-3 xx "d"^8)`
Simplify and express the Solution in the positive exponent form:
`("a"^3 "b"^(-5))^-2 = "a"^(3 xx -2) "b"^(-5 xx -2)`
Evaluate: `6^-2 div (4^-2 xx 3^-2)`
Evaluate: `[(5/6)^2 xx 9/4] div [(- 3^2/2) xx 125/216]`
Evaluate: 53 × 32 + (17)0 × 73
Evaluate: `2^5 xx 15^0 + (-3)^3 - (2/7)^-2`
Evaluate: `(2^2)^0 + 2^-4 div 2^-6 + (1/2)^-3`
Evaluate: `5^"n" xx 25^("n" - 1) div (5^("n" -1) xx 25^("n" - 1))`
If m = -2 and n = 2; find the values of m2 + n2 - 2mn.
If m2 = -2 and n = 2; find the values of: mn + nm
If m2 = -2 and n = 2; find the values of: 6m-3 + 4n2
If m2 = -2 and n = 2; find the values of: 2n3 – 3m
Solutions for 5: Exponents (Including Laws of Exponents)
Selina solutions for Concise Mathematics [English] Class 7 ICSE chapter 5 - Exponents (Including Laws of Exponents)
Shaalaa.com has the CISCE Mathematics Concise Mathematics [English] Class 7 ICSE 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 Concise Mathematics [English] Class 7 ICSE CISCE 5 (Exponents (Including Laws of Exponents)) 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 Concise Mathematics [English] Class 7 ICSE chapter 5 Exponents (Including Laws of Exponents) are Concept for Exponents Only Natural Numbers., Laws of Exponents (Through Observing Patterns to Arrive at Generalisation.), Concept for Application of Laws of Exponents in Simple Daily Life Problems, Concept of Exponents.
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