计算题10题:(1)-8又3/4-5又7/9+4又1/6-3又2/9
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计算题10题:

(1)-8又3/4-5又7/9+4又1/6-3又2/9

=(-8又3/4+4又1/6)-(5又7/9+3又2/9)

=-4又7/12-9

=-13又7/12

(2)-5.75-[-3又3/4+(-5又1/8)]-3.125

=(-5.75+3又3/4)+(5又1/8-3.125)

=-2+2

=0

(3)(-1又1/2)-[(1又1/4)-(-2又1/2)-(-3又3/4)]-(-1又1/4)+4

=(-1又1/2-2又1/2)+(-1又1/4+1又1/4)+(-3又3/4+4)

=-4+0+1/4

=-3又3/4

(3)(-4又7/8)-(-5又1/2)+(-4又1/4)-(-3又1/8)

=(-4又7/8+3又1/8)-4又1/4+5又1/2

=-1又3/4-4又1/4+5又1/2

=-6+5又1/2

=-1/2

(4)(-2013又5/6)-(-2012又2/3)-(-2011又3/4)-(+2010又1/2)

=(-2013+2012+2011-2010)+(-5/6+2/3+3/4-1/2)

=0+1/12

=1/12

(5)|-2又1/4|-(-3/4)+1-|1-1/2|

=2又1/4+3/4+1-1/2

=3+1-1/2

=3又1/2

(6)|-2又1/2|+(-3.7)+|-(+2.7)| - |-(7又1/2)|

=(2又1/2-7又1/2)+(-3.7-2.7)

=-5-6

=-11

(7)|+2+5/13|-|-37/10|+(-18/13)+0.13

=(2又5/13-18/13)+(-37/10+0.13)

=1-3.57

=-4.57

(8)|-9/41|-|-13/14|+|9/41-13/14|

=(9/41-9/41)+(-13/14+13/14)

=0+0

=0

(9)|1/2001-1/2000|+|1/2002-1/2001|-|1/2002-1/2000|

=1/2000-1/2001+1/2001-1/2002-1/2000+1/2002

=0

(10)1/2-[3/4-(1/4-5-1/2)]

=1/2-[3/4-5又1/4]

=1/2-4又1/2

=-4

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