细心算一算(1)(+2)-(-6)(2)|-3|×(-34)÷(-14)(3)(12-56-35)×30(4)18-[6-(-2)×(-12)](5)-2123+(+314)-(-23)-(+14)(6)(59-76)×(-18)-16×(29-718).-数学
题文
细心算一算 (1)(+2)-(-6) (2)|-3|×(-
(3)(
(4)18-[6-(-2)×(-
(5)-21
(6)(
|
答案
(1)(+2)-(-6)=8; (2)|-3|×(-
=3×
=9; (3)(
=
=15-25-18 =-28; (4)18-[6-(-2)×(-
=18-[6-1] =18-5 =13; (5)-21
|