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To add integers, first check their signs. When the signs match, add their absolute values and keep that sign. When the signs differ, subtract the smaller absolute value from the larger absolute value and keep the sign of the number with the larger absolute value. The absolute value of a number is its distance from zero, written , and is never negative. For example, and . Always evaluate expressions inside parentheses before multiplying or adding. The phrase “the sum of” indicates addition.
From open sources
11Complete problems only, with worked solutions first. Show everything
| # | Title | Difficulty | |
|---|---|---|---|
| 109232 | Add Integers · Exercise 63 | Medium | |
| 109359 | Subtract Integers · Exercise 83 | Medium | |
| 109469 | Multiply and Divide Integers · Exercise 71 | Medium | |
| 109471 | Multiply and Divide Integers · Exercise 73 | Medium | |
| 109230 | Add Integers · Exercise 61 | Medium | |
| 109357 | Subtract Integers · Exercise 81 | Medium | |
| 109467 | Multiply and Divide Integers · Exercise 69 | Medium | |
| 115150 | Add and Subtract Integers · Exercise 71 | Medium | |
| 115152 | Add and Subtract Integers · Exercise 73 | Medium | |
| 115154 | Add and Subtract Integers · Exercise 75 | Medium | |
| 115214 | Multiply and Divide Integers · Exercise 73 | Medium |