Exponents: Practice Questions Competitive Exams

  1. 0.00875 equals:

    1. 8.75 × 10 − 2

    2. 8.75 × 10 − 3

    3. 8.75 × 10 − 3

    4. 87.5 × 10 − 4

    5. 87.513 × 104

    Answer: b

  2. 104 is not equal to which of the following?

    1. 100, 000

    2. 1.0 × 10

    3. 10 × 10 × 10 × 10

    4. 10 × 10

    5. 10, 000

    Answer: a

  3. Multiply 104 by 102

    1. 10

    2. 10

    3. 10

    4. 10

    5. 101

    Answer: c

  4. Divide x5 by x2

    1. x

    2. x

    3. x

    4. x

    5. x2.5

    Answer: d

  5. Find 8.23 × 109

    1. 0.00000000823

    2. 0.000000823

    3. 8.23

    4. 8230000000

    5. 823000000000

    Answer: d

  6. 83, 000 equals:

    1. 83.0 × 10

    2. 8.3 × 10

    3. 8.3 × 10

    4. 83.0 × 10

    5. 83.0 × 10 − 7

    Answer: b