问题
解答题
计算: (1)(-50)-(-35). (2)-10-(-2)×(-4)2. (3)(-
(4)(-3)2÷(-32)+|-
|
答案
(1)(-50)-(-35)
=-50+35
=-15.
(2)-10-(-2)×(-4)2
=-10-(-2)×16
=-10+32
=22.
(3)(-
)÷(-17 3
)-1 6
×(-23 4
)2 3
=(-
)×(-7 3
)-6 7
×(-3 4
)8 3
=2+2
=4.
(4)(-3)2÷(-32)+|-
|×(-9)1 3
=9÷(-9)+
×(-9)1 3
=-1-3
=-4.