题目内容
(1)18-6÷(-2)×(-
)
(2)(
+
-
)×(-12)
(3)(-3)2×{-
+(-
)}
(4)0-23÷(-4)3-
.
| 1 |
| 3 |
(2)(
| 1 |
| 4 |
| 1 |
| 6 |
| 1 |
| 2 |
(3)(-3)2×{-
| 2 |
| 3 |
| 5 |
| 9 |
(4)0-23÷(-4)3-
| 1 |
| 8 |
(1)18-6÷(-2)×(-
)
=18-3×
=18-1
=17;
(2)(
+
-
)×(-12)
=
×(-12)+
×(-12)-
×(-12)
=-3-2+6
=1;
(3)(-3)2×{-
+(-
)}
=9×{-
}
=-11;
(4)0-23÷(-4)3-
=0-8÷(-64)-
=0+
-
=0.
| 1 |
| 3 |
=18-3×
| 1 |
| 3 |
=18-1
=17;
(2)(
| 1 |
| 4 |
| 1 |
| 6 |
| 1 |
| 2 |
=
| 1 |
| 4 |
| 1 |
| 6 |
| 1 |
| 2 |
=-3-2+6
=1;
(3)(-3)2×{-
| 2 |
| 3 |
| 5 |
| 9 |
=9×{-
| 11 |
| 9 |
=-11;
(4)0-23÷(-4)3-
| 1 |
| 8 |
=0-8÷(-64)-
| 1 |
| 8 |
=0+
| 1 |
| 8 |
| 1 |
| 8 |
=0.
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