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计算．（能简算的要简算）2321230÷23113.68-（2.53+8.68）932÷[34-（716-14）]38×68-18÷168．
题目详情
计算．（能简算的要简算）
232
÷231
13.68-（2.53+8.68）
÷[
-（
-
）]
×68-
÷
．
232
| 1 |
| 230 |
13.68-（2.53+8.68）
| 9 |
| 32 |
| 3 |
| 4 |
| 7 |
| 16 |
| 1 |
| 4 |
| 3 |
| 8 |
| 1 |
| 8 |
| 1 |
| 68 |
▼优质解答
答案和解析
①232
÷231
=（231+
）÷231
=231÷231+
÷231
=1+
=1
②13.68-（2.53+8.68）
=13.68-8.68-2.53
=5-2.53
=2.47
③
÷[
-（
-
）]
=
÷（
+
-
）
=
÷（1-
）
=
÷
=
×
=
④
×68-
÷
=
×68-
×68
=（
−
）×68
=
×68
=17
| 1 |
| 230 |
=（231+
| 231 |
| 230 |
=231÷231+
| 231 |
| 230 |
=1+
| 1 |
| 230 |
=1
| 1 |
| 230 |
②13.68-（2.53+8.68）
=13.68-8.68-2.53
=5-2.53
=2.47
③
| 9 |
| 32 |
| 3 |
| 4 |
| 7 |
| 16 |
| 1 |
| 4 |
=
| 9 |
| 32 |
| 3 |
| 4 |
| 1 |
| 4 |
| 7 |
| 16 |
=
| 9 |
| 32 |
| 7 |
| 16 |
=
| 9 |
| 32 |
| 9 |
| 16 |
=
| 9 |
| 32 |
| 16 |
| 9 |
=
| 1 |
| 2 |
④
| 3 |
| 8 |
| 1 |
| 8 |
| 1 |
| 68 |
=
| 3 |
| 8 |
| 1 |
| 8 |
=（
| 3 |
| 8 |
| 1 |
| 8 |
=
| 1 |
| 4 |
=17
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