问题
解答题
| 列式计算我能行． ①45个
②比一个数的
|
答案
①（
| 5 |
| 9 |
=（25-0.4）÷0.4，
=24.6÷0.4，
=61.5．
答：商是61.5．
②（28+32）÷
| 4 |
| 5 |
=60÷
| 4 |
| 5 |
=75．
答：这个数是75．
搜题请搜索小程序“爱下问搜题”
| 列式计算我能行． ①45个
②比一个数的
|
①（
| 5 |
| 9 |
=（25-0.4）÷0.4，
=24.6÷0.4，
=61.5．
答：商是61.5．
②（28+32）÷
| 4 |
| 5 |
=60÷
| 4 |
| 5 |
=75．
答：这个数是75．