Giải thích các bước giải:
`12-(5+8)-|-6|+|+3|`
`=12-5-8-6+3`
`=(12-5)+(3-6)-8`
`=7-3-8`
`=4-8`
`=-4`
`|-11|-[5-(-7)+|+3|-(-8)]`
`=11-(5+7+3+8)`
`=11-5-7-3-8`
`=(11-5)-(7+3)-8`
`=6-10-8`
`=-4-8`
`=-12`
`-|-14|-[-5-(7-8)+3] `
`=-14-(-5-7+8+3)`
`=-14+5+7-8-3`
`=(-14+5)+(7-8)-3`
`=-9-1-3`
`=-10-3`
`=-13`
`8-[4-|-3|+(-2+4-8)]`
`=8-(4-3-2+4-8)`
`=8-4+3+2-4+8`
`=(8-4)+(3+2)+(8-4)`
`=4+5+4`
`=9+4`
`=13`