计算(1)(-3)+(-4)-(+11)-(-9)(2)?0.5?(?314)+2.75?712;(3)(12+56?712)×(?36)(4)?14?(?
计算(1)(-3)+(-4)-(+11)-(-9)(2)?0.5?(?314)+2.75?712;(3)(12+56?712)×(?36)(4)?14?(?512)×41...
计算(1)(-3)+(-4)-(+11)-(-9)(2)?0.5?(?314)+2.75?712;(3)(12+56?712)×(?36)(4)?14?(?512)×411+(?2)3÷|?32+1|.
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推荐于2016-04-04
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(1)(-3)+(-4)-(+11)-(-9)
=-3-4-11+9
=-18+9
=-9;
(2)
?0.5?(?3)+2.75?7=(-0.5-7
)+(3.25+2.75)
=-8+6
=-2;
(3)
(+?)×(?36)=-
×36-
×36+
×36
=-18-30+21
=-27;
(4)
?14?(?5)×+(?2)3÷|?32+1|=-1+2-8÷|-9+1|
=-1+2-8÷8
=-1+2-1
=0.
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