Adding and Subtracting Rational Numbers
Practice adding and subtracting rational numbers, including fractions, decimals, and mixed numbers.
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Adding and Subtracting Rational Numbers
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Read each question carefully and answer to the best of your ability. Show all your work for full credit.
1. Use the number line below to find the sum: -3 + 5 =
2. Calculate the difference: 2.5 - 4.7 =
3. Which of the following is equivalent to -2/3 + 1/6?
-1/2
-1/3
1/2
1/3
4. The temperature dropped from 15.2°F to -3.8°F. What was the total change in temperature?
11.4°F
19°F
-11.4°F
-19°F
5. A recipe calls for 3/4 cup of flour. If you only have 1/2 cup, how much more flour do you need? Show your work.
6. Evaluate the expression: -7.3 + (-2.1) - 5.4. Show your work.
7. The sum of two negative rational numbers is always negative.
True
False
8. When subtracting a negative rational number, you add its absolute value.
True
False
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