题目内容
计算:
(1)(-12)-5×(-2)2+6
(2)(
+1
-2.75)×(-24)+(-1)200.
(1)(-12)-5×(-2)2+6
(2)(
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(1)原式=-1-5×4+6
=-1-20+6
=-15;
(2)原式=(-3-24+66)+1
=39+1
=40.
=-1-20+6
=-15;
(2)原式=(-3-24+66)+1
=39+1
=40.
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