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简算．23×192258+62.5%×37+58×4756×911+56÷1113（34+47）×8×7．
题目详情
简算．
23×
+62.5%×
+
×
×
+
÷
（
+
）×8×7．
23×
| 19 |
| 22 |
| 5 |
| 8 |
| 3 |
| 7 |
| 5 |
| 8 |
| 4 |
| 7 |
| 5 |
| 6 |
| 9 |
| 11 |
| 5 |
| 6 |
| 11 |
| 13 |
（
| 3 |
| 4 |
| 4 |
| 7 |
▼优质解答
答案和解析
①23×
=（22+1）×
=22×
+1×
=19+
=19
；
②
+62.5%×
+
×
=
×(1+
+
)
=
×2
=
；
③
×
+
÷
=
×(
+
)
=
×2
=
；
④（
+
）×8×7
=
×8×7+
×7×8
=42+28
=70．
| 19 |
| 22 |
=（22+1）×
| 19 |
| 22 |
=22×
| 19 |
| 22 |
| 19 |
| 22 |
=19+
| 19 |
| 22 |
=19
| 19 |
| 22 |
②
| 5 |
| 8 |
| 3 |
| 7 |
| 5 |
| 8 |
| 4 |
| 7 |
=
| 5 |
| 8 |
| 3 |
| 7 |
| 4 |
| 7 |
=
| 5 |
| 8 |
=
| 5 |
| 4 |
③
| 5 |
| 6 |
| 9 |
| 11 |
| 5 |
| 6 |
| 11 |
| 13 |
=
| 5 |
| 6 |
| 9 |
| 11 |
| 13 |
| 11 |
=
| 5 |
| 6 |
=
| 5 |
| 3 |
④（
| 3 |
| 4 |
| 4 |
| 7 |
=
| 3 |
| 4 |
| 4 |
| 7 |
=42+28
=70．
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