题目内容
①
-
+
-
②23÷(-
)×(-
)2
③(-3)2×23-(-4)÷2
④(
-
-
-
)÷(-
)
⑤-14÷(-5)2×(-
)+|0.8-1|
| 5 |
| 6 |
| 3 |
| 4 |
| 2 |
| 3 |
| 1 |
| 2 |
②23÷(-
| 4 |
| 9 |
| 2 |
| 3 |
③(-3)2×23-(-4)÷2
④(
| 1 |
| 4 |
| 1 |
| 36 |
| 1 |
| 6 |
| 1 |
| 12 |
| 1 |
| 48 |
⑤-14÷(-5)2×(-
| 5 |
| 3 |
①
-
+
-
,
=
-
+
-
,
=
=
;
②23÷(-
)×(-
)2,
=8×(-
)×
,
=-8;
③(-3)2×23-(-4)÷2,
=9×8+2,
=74;
④(
-
-
-
)÷(-
),
=(
-
-
-
)×(-48),
=-12+
+8+4,
=
;
⑤-14÷(-5)2×(-
)+|0.8-1|,
=-1×
×(-
)+
,
=
.
| 5 |
| 6 |
| 3 |
| 4 |
| 2 |
| 3 |
| 1 |
| 2 |
=
| 10 |
| 12 |
| 9 |
| 12 |
| 8 |
| 12 |
| 6 |
| 12 |
=
| 3 |
| 12 |
| 1 |
| 4 |
②23÷(-
| 4 |
| 9 |
| 2 |
| 3 |
=8×(-
| 9 |
| 4 |
| 4 |
| 9 |
=-8;
③(-3)2×23-(-4)÷2,
=9×8+2,
=74;
④(
| 1 |
| 4 |
| 1 |
| 36 |
| 1 |
| 6 |
| 1 |
| 12 |
| 1 |
| 48 |
=(
| 1 |
| 4 |
| 1 |
| 36 |
| 1 |
| 6 |
| 1 |
| 12 |
=-12+
| 4 |
| 3 |
=
| 4 |
| 3 |
⑤-14÷(-5)2×(-
| 5 |
| 3 |
=-1×
| 1 |
| 25 |
| 5 |
| 3 |
| 1 |
| 5 |
=
| 4 |
| 15 |
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