krit.club logo

Exponents and Powers

Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.

Powers with Negative Exponents

Subtopic

Powers with Negative Exponents under Exponents and Powers for Grade 8 CBSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    Simplify 22×212^{-2} \times 2^{-1}.

    A.

    18\frac{1}{8}

    B.

    14\frac{1}{4}

    C.

    88

    D.

    8-8

  2. 2.

    The value of (110)3(\frac{1}{10})^{-3} is:

    A.

    10001000

    B.

    0.0010.001

    C.

    1000-1000

    D.

    11000\frac{1}{1000}

  3. 3.

    Evaluate 31+31+313^{-1} + 3^{-1} + 3^{-1}.

    A.

    13\frac{1}{3}

    B.

    33

    C.

    11

    D.

    19\frac{1}{9}

Download the worksheet for Exponents and Powers - Powers with Negative Exponents to practice offline. It includes additional chapter-level practice questions.

Laws of Exponents

Subtopic

Laws of Exponents under Exponents and Powers for Grade 8 CBSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    The value of (10)3(-10)^3 is:

    A.

    10001000

    B.

    1000-1000

    C.

    30-30

    D.

    3030

  2. 2.

    Simplify 32×223^2 \times 2^2.

    A.

    1212

    B.

    3636

    C.

    1313

    D.

    2424

  3. 3.

    Find the value of (105)0(10^5)^0.

    A.

    100000100000

    B.

    00

    C.

    11

    D.

    1010

Download the worksheet for Exponents and Powers - Laws of Exponents to practice offline. It includes additional chapter-level practice questions.

Use of Exponents to Express Small Numbers in Standard Form

Subtopic

Use of Exponents to Express Small Numbers in Standard Form under Exponents and Powers for Grade 8 CBSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    Convert 7.7×1047.7 \times 10^{-4} into decimal form:

    A.

    0.0000770.000077

    B.

    0.00770.0077

    C.

    0.000770.00077

    D.

    0.0770.077

  2. 2.

    Standard form of 0.00000000000210.0000000000021 is:

    A.

    2.1×10122.1 \times 10^{-12}

    B.

    2.1×10112.1 \times 10^{-11}

    C.

    0.21×10110.21 \times 10^{-11}

    D.

    21×101321 \times 10^{-13}

  3. 3.

    Usual form of 8.8×1078.8 \times 10^{-7} is:

    A.

    0.000000880.00000088

    B.

    0.00000880.0000088

    C.

    0.0000880.000088

    D.

    0.0000000880.000000088

Download the worksheet for Exponents and Powers - Use of Exponents to Express Small Numbers in Standard Form to practice offline. It includes additional chapter-level practice questions.

Exponents and Powers - CBSE Class 8 Maths Notes & Revision | Krit.club