计算:(1)0-(+5)-(-3.6)+(-4)(2)-14-16×[3-(-3)2](3)(38-16-34)×(-24)(4)(?13)2÷
计算:(1)0-(+5)-(-3.6)+(-4)(2)-14-16×[3-(-3)2](3)(38-16-34)×(-24)(4)(?13)2÷133-12×(23-16...
计算:(1)0-(+5)-(-3.6)+(-4)(2)-14-16×[3-(-3)2](3)(38-16-34)×(-24)(4)(?13)2÷133-12×(23-16)(5)491415×(-5)(简便运算)
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Hi_imj
推荐于2016-09-25
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(1)0-(+5)-(-3.6)+(-4)
=0-5+3.6-4
=-9+3.6
=-5.4;
(2)-1
4-
×[3-(-3)
2]
=-1-
×(3-9)
=-1-
×(-6)
=-1+1
=0;
(3)(
-
-
)×(-24)
=
×(-24)-
×(-24)-
×(-24)
=-9+4+18
=22-9
=13;
(4)(-
)
2÷
-12×(
-
)
=
×27-12×
=3-6
=-3;
(5)49
×(-5)
=(50-
)×(-5)
=50×(-5)-
×(-5)
=-250+
=-249
.
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