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Operations with Positive and Negative Decimals Help

based on 2 ratings
By — McGraw-Hill Professional
Updated on Sep 21, 2011

Operations with Positive and Negative Decimals

When performing operations with decimals that are positive and negative, perform the operations using the rules given in Addition and Subtraction.

Examples

Example 1

Add –8.23 + (-0.61).

Solution 1

Operations with Positive and Negative Decimals

Recall that when two negative numbers are added, the answer is negative.

Example 2

Multiply –3.6 × 2.01.

Solution 2

Operations with Positive and Negative Decimals

Since a negative number times a positive number is negative, the answer –7.236.

Operations with Positive and Negative Decimals Practice Problems

Practice

Perform the indicated operation:

1. –18.62 + 3.25

2. –0.06 – 1.4

3. –3.7 × (–2.95)

4. –18.27 – (–3.5)

5. 4.5 – 10.95

Answers

1. –15.37

2. –1.46

3. 10.915

4. –14.77

5. –6.45

Practice problems for these concepts can be found at: Decimals Practice Test.

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