一、0.75+(-2又3/4)+(0.125)+(-12又5/7)+(-4又1/8)+14又5/7二、0-(-3.71)-(17.1)-(-5)+(5.61-3.82)+(-1.79)三、(-5)×4/7×(-5/4)×(-3/5)四、(-5)×33+(-5)×37
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一、0.75+(-2又3/4)+(0.125)+(-12又5/7)+(-4又1/8)+14又5/7二、0-(-3.71)-(17.1)-(-5)+(5.61-3.82)+(-1.79)三、(-5)×4/7×(-5/4)×(-3/5)四、(-5)×33+(-5)×37
一、0.75+(-2又3/4)+(0.125)+(-12又5/7)+(-4又1/8)+14又5/7
二、0-(-3.71)-(17.1)-(-5)+(5.61-3.82)+(-1.79)
三、(-5)×4/7×(-5/4)×(-3/5)
四、(-5)×33+(-5)×37
一、0.75+(-2又3/4)+(0.125)+(-12又5/7)+(-4又1/8)+14又5/7二、0-(-3.71)-(17.1)-(-5)+(5.61-3.82)+(-1.79)三、(-5)×4/7×(-5/4)×(-3/5)四、(-5)×33+(-5)×37
一、0.75+(-2又3/4)+(0.125)+( -12又5/7)+(-4又1/8)+14又5/7
=(0.75-2.75)+(0.125-4.125)+(14又5/7 -12又5/7)
=-2-4+2
=-4
二、0-(-3.71)-(17.1)-(-5)+(5.61-3.82)+(-1.79)
=3.71-17.1-1.79+5+1.79
=3.71-17.1+5+1.79-1.79
=-8.39
三、 (-5)×4/7×(-5/4)×(-3/5)
=-5×4/7×5/4)×3/5
=-15/7
四、(-5)×33+(-5)×37
=(-5)×(33+37)
=(-5)×70
= - 350
四、(-5)×(33+37)=(-5)×70=-350
这种题目不是很简单吗? 你是懒得做寒假作业吧?
一、0.75+(-2又3/4)+(0.125)+(-12又5/7)+(-4又1/8)+14又5/7
=[0.75+(-2又3/4)]+[(0.125)+(-4又1/8)]+[(-12又5/7)+14又5/7]
=(-2)+(-4)+2
=-4
二、0-(-3.71)-(17.1)-(-5)+(5.61-3.82)+(-1.79)
=0+3.71-17.1+5...
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一、0.75+(-2又3/4)+(0.125)+(-12又5/7)+(-4又1/8)+14又5/7
=[0.75+(-2又3/4)]+[(0.125)+(-4又1/8)]+[(-12又5/7)+14又5/7]
=(-2)+(-4)+2
=-4
二、0-(-3.71)-(17.1)-(-5)+(5.61-3.82)+(-1.79)
=0+3.71-17.1+5+5.61-3.82-1.79
=(3.71+5+5.61)-(17.1+3.82+1.79)
=14.32-22.71
=-8.39
三、(-5)×4/7×(-5/4)×(-3/5)
=[(-5)×(-3/5)]×[(4/7)×(-5/4)]
=3×(-5/7)
=-15/7
四、(-5)×33+(-5)×37
=(-5)×(33+37)
=(-5)×70
=-350
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