解:(1)﹣8﹣12+2
=﹣20+2
=﹣18;
(2)0.5+﹣(﹣2.75)+(+)
=0.5+0.25+2.75+0.5
=(0.5+0.5)+(0.25+2.75)
=1+3
=4;
(3)÷
=﹣9+[(﹣)×12+(﹣)×12]
=﹣9+[(﹣8)+(﹣3)]
=﹣9﹣11
=﹣20;
(4)
=﹣9﹣(﹣﹣)
=﹣9﹣(﹣﹣)
=﹣9﹣(﹣)
=﹣9+
=﹣8;
(5)
=(﹣100+)×14
=﹣100×14+×14
=﹣1400+4
=﹣1396.
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