问题
填空题
(1)3+(-2)=______; (2)-2-(-2)=______; (3)-2×5=______; (4)-6÷(-3)=______; (5)1-(-1)2=______; (6)-33×
(7)-2+(-6)÷(-
(8)x5+x5=______. |
答案
(1)原式=3-2
=1;
(2)原式=-2+2
=0;
(3)原式=-10;
(4)原式=6÷3
=2;
(5)原式=-9×2 9
=-2;
(6)原式=-2+6×4 5
=-2+24 5
=
;12 5
(7)原式=2x5.
故答案为1;0;-10;2;-2;
;2x5.12 5