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.

💡 Ace Your Mathematics Board Exam:

• Have a question about any step or formula in Chapter R-3? Drop your question in the comments below!
• Bookmark this page for quick revision before your tests and pre-boards.
• Share this post with your classmates and study groups to help them master Class 10 Maths!