Looking for authentic SEBA Class 10 Mathematics Chapter R-3 (Revision 3) solutions for the 2026–27 academic year? Access step-by-step solved exercises on exponents, prime factorization, and standard forms tailored to help you score high in your HSLC board exams.
Exercise : R-3
(1) Find the value of :
(i) 11³
(ii) 2 × 10³
(iii) (1/2)⁻⁵
(iv) (-4)⁻²
Solution
SEBA Class 10 Maths R-3 Textual Exercise Solutions
(2) Express the following numbers in terms of powers of their prime factors.
(i) 729
(ii) 3125
(iii) 3600
(iv) 108 × 192
Solution:-
(i) 729
=3 × 3 × 3 × 3 × 3 × 3
= 3⁶
(ii) 3125
= 5 × 5 × 5 × 5 × 5
= 5⁵
(iii) 3600
= (2 × 2 × 2 × 2) × (3 × 3) × (5 × 5)
= 2⁴ × 3² × 5²
(iv) 108 × 192
= 2² × 3³ 192 = 2⁶ × 3¹ 108 × 192
= (2² × 3³) × (2⁶ × 3¹)
= 2⁽²⁺⁶⁾ × 3⁽³⁺¹⁾
= 2⁸ × 3⁴
(3) Simplify :
(i) (-3)² × (-5)²
(ii) (2³ × 2)⁴
(iii) 2⁰ × 3⁰ × 4⁰
(iv) (5/8)⁻⁷ × (8/5)⁻⁴
HSLC Maths Revision 3 Question Answer
(4) Compare the following numbers :
(i) 2⁸ , 8²
(ii) 2.7 × 10¹² , 1.5 × 10⁸
Class 10 Maths Chapter R-3 Question Answer SEBA 2026-27
(5) Express the following with the help of positive power.
(i) 2⁻³ × (-7)⁻³
(ii) (-3)⁻⁴ × (5/3)⁻⁴
(6) Express the following numbers in standard form.
(i) 3,430,000
(ii) 70,040,000,000
(iii) 0.00000015
(iv) 0.00001436
SEBA Class 10 Maths Chapter R-3 Exercise Notes
(7) Express the following in general form.
(i) 1.0001 × 10⁹
(ii) 3.02 × 10⁻⁶
(8) Find the value of m such that
(-3)⁽ᵐ⁺¹⁾ × (-3)⁵ = (-3)⁷
SEBA Class 10 Maths Revision 3 Solutions
(9) Find the correct option of the following :
(a) The value of 3⁻³ is :
(i) 3³
(ii) 1 / (3³)
(iii) -1 / (3³)
(iv) 3 × 3
(b) The value of (2/3)² is :
(i) 1 / (2 × 3)²
(ii) (2 × 3)⁻²
(iii) (3/2)⁻²
(iv) (3/2)²
(c) The value of (-2/3)⁴ is :
(i) 8/12
(ii) 16/81
(iii) -16/81
(iv) -8/12
(d) The standard form of 0.000064 is :
(i) 64 × 10⁴
(ii) 64 × 10⁻⁴
(iii) 6.4 × 10⁵
(iv) 6.4 × 10⁻⁵
(e) The value of 2.03 × 10⁻⁵ is :
(i) 0.203
(ii) 0.0000203
(iii) 203000
(iv) 0.00203
📐 Updated Solutions Notice: This post provides step-by-step SEBA Class 10 Mathematics Chapter R-3 (Revision 3) Textual Exercise Solutions updated for the 2026–27 academic session. All solutions follow the latest revised Assam Board (SEBA) textbook syllabus.
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