Responda:
a) (-2) × (+3)
b) (+1) ÷ (-2)
c) (-1) × (+3)
d) (-7) ÷ (-11)
e) (-14) ÷ 0
f) (+15) ÷ (-8)
g) 0 ÷ (-342)
h) (+12) ÷ (-12)
i) (-1) × (-1)
j) (-11) ÷ (-9)
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