Sumas de nĂºmeros enteros
- 1. (-13) + (+3) + (-24) =
- 2. (+3) + (-12) + (-23) + (+8) =
- 3. (+54) + (+21) + (-43) =
- 4. (+2) + (+5) + (-3) + (-6)=
- 6. (-14) + (+73) + (-85) =
- 7. (+28) + (+67) + (-27) =
- 8. (-27) + (+18) + (+45) + (-29) =
- 9. (+9) + (-9) + (+3) + (-14) =
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