Respuesta:
19 – (-12) = 31
(-18) – 9 = -27
- 6- - (-27) = -33
18 – (-2) = 20
(-18) – 4 = -22
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Respuesta:
19 – (-12) = 31
(-18) – 9 = -27
- 6- - (-27) = -33
18 – (-2) = 20
(-18) – 4 = -22