问题
填空题
填空: (1)5×(-4)=______;(2)(-6)×4=______;(3)(-7)×(-1)=______; (4)(-5)×0=______;(5)
(7)(-3)×(-
|
答案
(1)5×(-4)=-20;
(2)(-6)×4=-24;
(3)(-7)×(-1)=7;
(4)(-5)×0=0;
(5)
×(-4 9
)=-3 2
;2 3
(6)(-
)×(-1 6
)=2 3
;1 9
(7)(-3)×(-
)=1.1 3
故答案为:-20;-24; 7; 0;-
;2 3
;1.1 9