题目内容
计算:(1)10÷[
-(-1+1
)]×6;
(2)(-5)-(-5)×
÷
×(-5);
(3)
×(-
)-(-
)×(-
)-
×2
;
(4)[-0.52+(-
)2-|-22-4|+(2
)2×
]÷(0.1)2.
(2)(-5)-(-5)×
(3)
(4)[-0.52+(-
解:(1)原式=10÷(
+1-
)×6=10÷(
+1-
)×6=10×6×6=360;
(2)原式=(-5)-(-5)×
×10×(-5)=(-5)-25 =-30;
(3)原式=(
+
+2
)×(-
)=
×(-
)=-
;
(4)原式=[-
+
-|-4-4|+(
)2×
]÷(
)2-(-
+
-8+
×
)×100
=(-8+3) ×100=-5×100=-500.
(2)原式=(-5)-(-5)×
(3)原式=(
(4)原式=[-
=(-8+3) ×100=-5×100=-500.
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