1.217 + (-15) = 2. 177 - (-75) =
3. (-2543) + 730 =
4. (-899) - (-783) =
5. (-547) + (-218) =
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1.217 + (-15) = 2. 177 - (-75) =
3. (-2543) + 730 =
4. (-899) - (-783) =
5. (-547) + (-218) =
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