题目内容
(1)3×(-22)÷(
-
)×
(2)
-
+
| 1 |
| 2 |
| 1 |
| 3 |
| 1 |
| 6 |
(2)
| 9 |
| 3 | 27 |
| 3 |
(1)3×(-22)÷(
-
)×
=3×(-4)×6×
(2分)
=-12(1分)
(2)原式
=3-3+
(2分)
=
(1分)
| 1 |
| 2 |
| 1 |
| 3 |
| 1 |
| 6 |
=3×(-4)×6×
| 1 |
| 6 |
=-12(1分)
(2)原式
=3-3+
| 3 |
=
| 3 |
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有理数-22,(-2)3,-|-2|,-(-
)中,负数有( )
| 1 |
| 2 |
| A、1个 | B、2个 | C、3个 | D、4个 |