问题
解答题
计算: (1)375÷(-
(2)3×(-4)+(-28)÷7; (2)42×(-
(4)(-1155)÷[(-11)×(+3)×(-5)]. |
答案
(1)原式=375×(-
)×(-3 2
)=3 2
;3375 4
(2)原式=-12-4=-16;
(3)原式=-28+3=-25;
(4)原式=-1155÷165=-7.
计算: (1)375÷(-
(2)3×(-4)+(-28)÷7; (2)42×(-
(4)(-1155)÷[(-11)×(+3)×(-5)]. |
(1)原式=375×(-
)×(-3 2
)=3 2
;3375 4
(2)原式=-12-4=-16;
(3)原式=-28+3=-25;
(4)原式=-1155÷165=-7.