A-A+
计算:(1)4-(-4)+(-3);(2)-713+5+213;(3)-14-[3-(-2)
问题详情
计算:
(1)4-(-4)+(-3);
(2)-7
(3)-14-[3-(-2)3];
(4)(-
(5)-2×(-2
(6)4
参考答案
(1)4-(-4)+(-3)
=4+4-3
=5;
(2)-713+5+213
=-713+213+5
=-5+5
=0;
(3)-14-[3-(-2)3]
=-1-[3+8]
=-1-11
=-12;
(4)(-13)×3÷(-3)×(-13)
=-(13×13)×(3÷3)
=-19×1
=-19;
(5)-2×(-216)+(-7)×216+5×136
=(2-7+5)×216
=0×216
=0;
(6)412×[-32×(-13)2-0.8]÷(-214)
=412×[-9×19-0.8]×(-49)
=412×[-1-0.8]×(-49)
=92×(-95)×(-49)
=185.
考点: