问题
填空题
计算: (1)1-(
(2)-22+(-2)3=______; (3)-52-52=______. |
答案
(1)1-
+1 6 5 6
=1+2 3
=1
;2 3
(2)原式=-4-8
=-12;
(3)原式=-25-25
=-50.
故答案为:(1)1
;(2)-12;(3)-50.2 3
计算: (1)1-(
(2)-22+(-2)3=______; (3)-52-52=______. |
(1)1-
+1 6 5 6
=1+2 3
=1
;2 3
(2)原式=-4-8
=-12;
(3)原式=-25-25
=-50.
故答案为:(1)1
;(2)-12;(3)-50.2 3