问题
解答题
计算 (1)-12×4-(-6)×5; (2)4-(-2)3-32÷(-1)3; (3)-24+3×(-1)4-(-2)3; (4)(-
(5)(-4
(6)
(7)-14-
(8)0.25×(-2)3-[4÷(-
|
答案
(1)原式=-48-(-30)
=-48+30
=-18;
(2)原式=4-(-8)-9÷(-1)
=4+8+9
=21;
(3)原式=-16+3×1-(-8)
=-16+3+8
=-5;
(4)原式=-
×(-24)+1 2
×(-24)-2 3
×(-24)1 4
=12-16+6
=2;
(5)原式=-4
-37 8
+51 8
-41 2 1 4
=-8+11 4
=-6
;3 4
(6)原式=
×[3×3 2
-1]9 4
=
×3 2 23 4
=
;69 8
(7)原式=-1-
×[2-9]1 6
=-1-
×[-7]1 6
=-1+7 6
=
;1 6
(8)原式=0.25×(-8)-[4×
+1]-19 4
=-2-[9+1]-1
=-2-10-1
=-13.