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Exponents and Powers

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

Laws of Exponents with integral powers

Subtopic

Laws of Exponents with integral powers under Exponents and Powers for Grade 8 ICSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    Find the value of 32+423^{2} + 4^{2} and express it as a square.

    A.

    727^{2}

    B.

    525^{2}

    C.

    12212^{2}

    D.

    121^{2}

  2. 2.

    Write 0.010.01 as a power of 1010.

    A.

    10−110^{-1}

    B.

    10−210^{-2}

    C.

    10210^{2}

    D.

    10−310^{-3}

  3. 3.

    Evaluate (72)0(7^{2})^{0}.

    A.

    4949

    B.

    00

    C.

    11

    D.

    77

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

Expressing numbers in Standard Form (Scientific Notation)

Subtopic

Expressing numbers in Standard Form (Scientific Notation) under Exponents and Powers for Grade 8 ICSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    What is the standard form of 0.0000000040.000000004?

    A.

    4×10−84 \times 10^{-8}

    B.

    0.4×10−80.4 \times 10^{-8}

    C.

    40×10−1040 \times 10^{-10}

    D.

    4×10−94 \times 10^{-9}

  2. 2.

    Express 20,200,00020,200,000 in standard form.

    A.

    2.02×1072.02 \times 10^7

    B.

    20.2×10620.2 \times 10^6

    C.

    2.02×1062.02 \times 10^6

    D.

    0.202×1080.202 \times 10^8

  3. 3.

    Convert 1.234×10−31.234 \times 10^{-3} to usual form.

    A.

    0.012340.01234

    B.

    0.0012340.001234

    C.

    0.12340.1234

    D.

    0.00012340.0001234

Download the worksheet for Exponents and Powers - Expressing numbers in Standard Form (Scientific Notation) to practice offline. It includes additional chapter-level practice questions.

Negative Exponents

Subtopic

Negative Exponents under Exponents and Powers for Grade 8 ICSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    Evaluate (−10)−2(-10)^{-2}.

    A.

    −100-100

    B.

    0.010.01

    C.

    −0.01-0.01

    D.

    100100

  2. 2.

    What is the value of (110)−3(\frac{1}{10})^{-3}?

    A.

    10001000

    B.

    0.0010.001

    C.

    100100

    D.

    0.010.01

  3. 3.

    Value of 2−62^{-6} is:

    A.

    132\frac{1}{32}

    B.

    112\frac{1}{12}

    C.

    164\frac{1}{64}

    D.

    −64-64

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

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