ML Aggarwal Class 8 Solutions for ICSE Maths Chapter 2 Exponents and Powers Objective Type Questions

ML Aggarwal Class 8 Solutions for ICSE Maths Chapter 2 Exponents and Powers Objective Type Questions

Mental Maths

Question 1.
Fill in the blanks:
(i) Multiplicative inverse of \(\left( \frac { -4 }{ 5 } \right) ^{ 2 }\) = ……..
(ii) The standard form of 0.000182 = ………
(iii) The standard form of ……….. is 0.00000003572.
(iv) Expanded form of 273.92 = ………..
(v) If (-7)x × \(\left( \frac { 1 }{ -7 } \right) ^{ -3 }\) = 78, then value of x is …….
(vi) If 3n = 729, then n = ……
(vii) The value of (70 + 50) is ……..
Solution:
ICSE Class 8 Maths Book Solutions Free Download Pdf Chapter 2 Exponents and Powers Objective Type Questions Q1
Maths Questions for Class 8 ICSE With Answers Chapter 2 Exponents and Powers Objective Type Questions Q1.1

Question 2.
State whether the following statements are true (T) or false (F):
(i) The value of (-3)-2 is \(\frac { 1 }{ -9 }\).
(ii) For negative integers m and n, am × an = am+n (a ≠ 0).
(iii) 30 × 40 = 120.
(iv) The value of 37 – 27 is 17.
(v) The standard form of 0.0034 is 3.4 × 103.
(vi) Multiplicative inverse of (-2)5 is \(\frac { 1 }{ -32 }\).
Solution:
ICSE Mathematics Class 8 Solutions Chapter 2 Exponents and Powers Objective Type Questions Q2

Multiple Choice Questions

Choose the correct answer from the given four options (3 to 12):
Question 3.
\(\left( \frac { 1 }{ 2 } \right) ^{ -5 }\) is equal to
(a) 32
(b) \(\frac { 1 }{ 32 }\)
(c) -32
(d) \(\frac { -1 }{ 32 }\)
Solution:
ML Aggarwal Maths for Class 8 Solutions Book Pdf Chapter 2 Exponents and Powers Objective Type Questions Q3

Question 4.
ML Aggarwal Class 8 Solutions Chapter 2 Exponents and Powers Objective Type Questions Q4
Solution:
APC Maths Class 8 Solutions Chapter 2 Exponents and Powers Objective Type Questions Q4.1

Question 5.
If 24 × 43 = 4x, then the value of x is
(a) 5
(b) 7
(c) 4
(d) -5
Solution:
ICSE Understanding Mathematics Class 8 Solutions Chapter 2 Exponents and Powers Objective Type Questions Q5

Question 6.
ICSE Class 8 Maths Book Solutions Free Download Pdf Chapter 2 Exponents and Powers Objective Type Questions Q6
Solution:
Maths Questions for Class 8 ICSE With Answers Chapter 2 Exponents and Powers Objective Type Questions Q6.1

Question 7.
ICSE Mathematics Class 8 Solutions Chapter 2 Exponents and Powers Objective Type Questions Q7
Solution:
ML Aggarwal Maths for Class 8 Solutions Book Pdf Chapter 2 Exponents and Powers Objective Type Questions Q7.1

Question 8.
Standard form of 0.000000789 is
(a) 78.9 × 10-8
(b) 789 × 10-9
(c) 7.89 × 10-7
(d) None
Solution:
ML Aggarwal Class 8 Solutions Chapter 2 Exponents and Powers Objective Type Questions Q8

Question 9.
The usual form of 3.67 × 105 is
(a) 3670000
(b) 367000
(c) 36700
(d) 3670
Solution:
APC Maths Class 8 Solutions Chapter 2 Exponents and Powers Objective Type Questions Q9

Question 10.
Multiplicative inverse of \(\left( \frac { -2 }{ 3 } \right) ^{ 4 }\) is
(a) \(\frac { 16 }{ 81 }\)
(b) \(\frac { -16 }{ 81 }\)
(c) \(\frac { 81 }{ 16 }\)
(d) \(\frac { -81 }{ 16 }\)
Solution:
ICSE Understanding Mathematics Class 8 Solutions Chapter 2 Exponents and Powers Objective Type Questions Q10

Question 11.
ICSE Class 8 Maths Book Solutions Free Download Pdf Chapter 2 Exponents and Powers Objective Type Questions Q11
Solution:
Maths Questions for Class 8 ICSE With Answers Chapter 2 Exponents and Powers Objective Type Questions Q11.1

Question 12.
ICSE Mathematics Class 8 Solutions Chapter 2 Exponents and Powers Objective Type Questions Q12
Solution:
ML Aggarwal Maths for Class 8 Solutions Book Pdf Chapter 2 Exponents and Powers Objective Type Questions Q12.1

Value Based Questions

Question 1.
Anaemia causes due to deficiency of Red Blood cells. The size of a red blood cell is 0.000000007 mm. Express it in standard form. Rahul is suffering from anemia, his doctor adviced him to take healthy food regularly and avoid junk food.
Why should we eat healthy food? What values are being promoted?
Solution:
ML Aggarwal Class 8 Solutions Chapter 2 Exponents and Powers Objective Type Questions VBQ 1

Higher Order Thinking Skills (HOTS)

Question 1.
Find the multiplicative inverse of (50 + 30) (50 – 30).
Solution:
APC Maths Class 8 Solutions Chapter 2 Exponents and Powers Objective Type Questions HOTS 1

Question 2.
ICSE Understanding Mathematics Class 8 Solutions Chapter 2 Exponents and Powers Objective Type Questions HOTS 2
Solution:
ICSE Class 8 Maths Book Solutions Free Download Pdf Chapter 2 Exponents and Powers Objective Type Questions HOTS 2.1

Question 3.
Maths Questions for Class 8 ICSE With Answers Chapter 2 Exponents and Powers Objective Type Questions HOTS 3
Solution:
ICSE Mathematics Class 8 Solutions Chapter 2 Exponents and Powers Objective Type Questions HOTS 3.1

ML Aggarwal Class 8 Solutions for ICSE Maths

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