问题
解答题
计算: (1)-17-(-23)+(-13)-(+23) (2)(
(3)42013×(
(4)-14-(-
|
答案
(1)原式=-17+23-13-23
=23-53
=-30;
(2)原式=9-2-1
=6;
(3)原式=(4×
)2012×4÷41 4
=1;
(4)原式=-1-
×8×(-8)1 4
=-1+16
=15.
计算: (1)-17-(-23)+(-13)-(+23) (2)(
(3)42013×(
(4)-14-(-
|
(1)原式=-17+23-13-23
=23-53
=-30;
(2)原式=9-2-1
=6;
(3)原式=(4×
)2012×4÷41 4
=1;
(4)原式=-1-
×8×(-8)1 4
=-1+16
=15.