A-A+
计算:(1)-3+5.3+7-5.3(2)(-2)×32÷(-34)×4(3)-16-|-5
问题详情
计算:
(1)-3+5.3+7-5.3
(2)(-2)×
(3)-16-|-5|+2×(-
(4)(
(5)-
参考答案
(1)-3+5.3+7-5.3
=-8.3+12.3
=4;
(2)(-2)×32÷(-34)×4
=2×32×43×4
=16;
(3)-16-|-5|+2×(-12)2
=-1-5+2×14
=-1-5+12
=-512;
(4)(13-14)÷(-112)+(-3)3÷(-3)
=﹙13-14﹚×﹙-12﹚+﹙-3﹚2
=-4+3+9
=8;
(5)-12+12÷[(-112)3+(-12)2]×|-2.52|-12
=-12+12÷[-278+14]×254-12
=-12+12×﹙-825﹚×254-12
=-12-1-12
=-2.
考点: