问题
解答题
计算:(1)-40-28-(-19)+(-24); (2)
|
答案
(1)原式=-40-28+19-24=-73;
(2)解原式=
×(-7 6
)×1 6
÷3 14
=-3 5
×7 6
×1 6
×3 14
=-5 3
.5 72
计算:(1)-40-28-(-19)+(-24); (2)
|
(1)原式=-40-28+19-24=-73;
(2)解原式=
×(-7 6
)×1 6
÷3 14
=-3 5
×7 6
×1 6
×3 14
=-5 3
.5 72