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计算:(-0.5)+3+2.75+(-5)
计算:|-0.25|-[+(-5.75)]+(-0.1)-|-(+0.5)|.
计算:
(-3)-(-2)-(-1)-(+1.75)
|-2|+|-22|=________,
|+6|-|-3|=________,
|-6|÷|-0.75|=________,
|-4|×|+5|=________.