问题
解答题
计算题 (1)(-4)-(-1)+(-6)÷2 (2)-3-[-2-(-8)×(-0.125)] (3)-25÷(-4)×(
(4)[-
|
答案
(1)原式=-4+1-3
=-6;
(2)原式=-3-(-2-1)
=-3+3
=0;
(3)-25÷(-4)×(
)2-12×(-15+24)31 2
=-32÷(-4)×
-12×(-15+16)31 4
=-32×(-
)×1 4
-12×(-15+16)31 4
=2-12
=-10;
(4)[-
-7 18
+5 12
-(-1 6
)]÷(2 9
)5 36
=(-
-7 18
+5 12
+1 6
)÷(2 9
)5 36
=(-
-7 18
+5 12
+1 6
)×(2 9
)36 5
=-
×7 18
-36 5
×5 12
+36 5
×1 6
+36 5
×2 9 36 5
=-
-3+14 5
+6 5
=(-8 5
+14 5
+6 5
)-38 5
=-3.