Adding and Subtracting Integers
Practice adding and subtracting positive and negative integers with this worksheet designed for Grade 9 students.
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Adding and Subtracting Integers
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Read each question carefully and solve the problems. Show your work where necessary.
1. When adding two integers with the same sign, you their absolute values and keep the sign.
2. When adding two integers with different signs, you their absolute values and use the sign of the number with the absolute value.
3. Subtracting an integer is the same as its .
Solve the following addition problems:
4. -8 + 5 =
5. -12 + (-7) =
6. 15 + (-9) =
7. 4 + (-10) =
Solve the following subtraction problems:
8. 6 - 11 =
9. -5 - 9 =
10. 3 - (-8) =
11. -10 - (-4) =
12. Which expression is equivalent to 7 - (-3)?
7 + 3
7 - 3
-7 + 3
-7 - 3
13. What is the sum of -15 and 20?
-35
-5
5
35
Solve the following word problems:
14. The temperature was -5°C in the morning. By afternoon, it rose by 12°C. What is the temperature in the afternoon?
15. A submarine is at a depth of -200 feet. It ascends 75 feet. What is its new depth?
16. Use the number line to show the sum of -3 + 7.