Homework Explained - Math Practice 101

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Grade 8 McGraw Hill Glencoe - Answer Keys
Chapter 1 - Real Numbers; Lesson 2: Powers and Exponents


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  Independent Practice  

Write each expression using exponents.

  • Question 2 (request help)

    \(3\cdot3\cdot5\cdot\text{q}\cdot\text{q}\cdot\text{q}\)

  • Type below:
  • Question 3 (request help)

    \(\text{m}\cdot\text{m}\cdot\text{m}\cdot\text{m}\cdot\text{m}\)

  • Type below:

Evaluate each expression.

  • Question 7 (request help)

    In the United States, nearly \(8\cdot10^{9}\) text messages are sent every month. About how many text messages is this?

  • Type below:
  • Question 8 (request help)

    Interstate 70 stretches almost \(2^{3}\cdot5^{2}\cdot11\) miles accross the United States. About how many miles long is Interstate 70?

  •     miles

Evaluate each expression.

  • Question 9 (request help)

    \(\text{g}^{5} - \text{h}^{3}\) if g = 2 and h = 7

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  • Question 10 (request help)

    \(\text{c}^{2} + \text{d}^{3}\) if c = 8 and d = -3

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  • Question 11 (request help)

    \(\text{a}^{2}\cdot\text{b}^{6}\) if a = \(\cfrac{1}{2}\) and b = 2

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  • Question 12 (request help)

    \((\text{r} - \text{s})^{2} + \text{r}^{2}\) if r = -3 and s = -4

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