
计算:(1)-14-16×[2-(-3)2];(2)(-1)4-(1-0.5)×13×[2-(-2)2];(3)(-2)2-22-|-14|×(
计算:(1)-14-16×[2-(-3)2];(2)(-1)4-(1-0.5)×13×[2-(-2)2];(3)(-2)2-22-|-14|×(-1)2;(4)(-212...
计算:(1)-14-16×[2-(-3)2];(2)(-1)4-(1-0.5)×13×[2-(-2)2];(3)(-2)2-22-|-14|×(-1)2;(4)(-212)×(-0.5)3×(-2)2×(-8).
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(1)-14-
×[2-(-3)2],
=-1-
×(2-9),
=-1+
,
=
;
(2)(-1)4-(1-0.5)×
×[2-(-2)2],
=1-
×
×(2-4),
=1+
,
=
;
(3)(-2)2-22-|-
|×(-1)2,
=4-4-
×1,
=-
;
(4)(-2
)×(-0.5)3×(-2)2×(-8),
=-
×(-
)×4×(-8),
=-
×
×4×8,
=-10.
1 |
6 |
=-1-
1 |
6 |
=-1+
7 |
6 |
=
1 |
6 |
(2)(-1)4-(1-0.5)×
1 |
3 |
=1-
1 |
2 |
1 |
3 |
=1+
1 |
3 |
=
4 |
3 |
(3)(-2)2-22-|-
1 |
4 |
=4-4-
1 |
4 |
=-
1 |
4 |
(4)(-2
1 |
2 |
=-
5 |
2 |
1 |
8 |
=-
5 |
2 |
1 |
8 |
=-10.
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