計(jì)算:
(1)-72+72÷36
(2)
3×(-)×÷(3)(-1)
3-(1-
)÷3×[2-(-3)
2]
(4)-9
2+2×(-3)
2-(-6)
÷(-)(5)
-2×(-)2+|-(-2)|3-(-)(6)
(-1)×(-1)×(-1)×…×(-1)×(-1)×(-1).
(1)-72+72÷36
=-72+2
=-70;
(2)
3×(-)×÷=
×(-
)×
×
=
;
(3)(-1)
3-(1-
)÷3×[2-(-3)
2]
=-1-
×
×[2-9]
=-1-
×[-7]
=-1+
=
;
(4)-9
2+2×(-3)
2-(-6)
÷(-)=-81+2×9-4.5
=-81+18-4.5
=-67.5;
(5)
-2×(-)2+|-(-2)|3-(-)=-2×
+8+
=-
+8+
=8;
(6)
(-1)×(-1)×(-1)×…×(-1)×(-1)×(-1)=-
×
×…×
×
=-
.
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