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Margarita [4]
3 years ago
5

1. -1 + 2 2. 1 + (-2) 3. -1 - 2 - 4. 1 - (-2)

Mathematics
2 answers:
olga nikolaevna [1]3 years ago
3 0

Answer:

1. 1

2. - 1

3. - 3

4. 3

<h3>Is the answer. </h3>
lawyer [7]3 years ago
3 0
1.) 1
2.) -1
3.) -3
4.) 3
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