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Home > CC1 > Chapter 5 > Lesson 5.3.4 > Problem 5-105

5-105.

Simplify each of the following expressions without using a calculator. Then use a calculator to check your answers. Homework Help ✎

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  1. 0.045 + 1.2 + 62.003

    Make sure you add parts that are alike. You can think of 0.045 as

    How can you combine this with the other numbers? Be sure to show your work.

  2. 56.7 − 0.23

    How can you subtract 23 hundredths from 70 hundredths?

  3. (7.8)(0.03)

    0.234

  4. 6.3 − 7.5

    Since 7.5 is greater than 6.3, your answer should be less than zero.

    −1.2