先用竖式计算,再用计算器验算.
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:综合作业 时间:2024/07/08 03:05:02
先用竖式计算,再用计算器验算. 280×16= | 36×242= | 420×50= |
48×320= | 57×198= | 406×80= |
![先用竖式计算,再用计算器验算.](/uploads/image/z/6388929-9-9.jpg?t=%E5%85%88%E7%94%A8%E7%AB%96%E5%BC%8F%E8%AE%A1%E7%AE%97%EF%BC%8C%E5%86%8D%E7%94%A8%E8%AE%A1%E7%AE%97%E5%99%A8%E9%AA%8C%E7%AE%97%EF%BC%8E)
(1)280×16=4480;
![](http://img.wesiedu.com/upload/5/59/55941e269151f486de70bfc56a16f0be.jpg)
验算:4480÷280=16
(2)36×242=8712;
![](http://img.wesiedu.com/upload/8/d4/8d4ca201ef6585e5bf74211da66856a2.jpg)
验算:8712÷242=36
(3)420×50=21000;
![](http://img.wesiedu.com/upload/8/61/8617108148d8ea32a754f743ebdeca82.jpg)
验算:21000÷420=50
(4)48×320=15360;
![](http://img.wesiedu.com/upload/9/57/95700513367c9b68eaf057ea52c06ce0.jpg)
验算:15360÷320=48
(5)57×198=11286;
![](http://img.wesiedu.com/upload/8/3b/83b29863f1e3efba47500360079e2778.jpg)
验算:11286÷198=57
(6)406×80=32480.
![](http://img.wesiedu.com/upload/e/30/e30a4f92ee8e1620bd8af95b19c942da.jpg)
验算:32480÷406=80
![](http://img.wesiedu.com/upload/5/59/55941e269151f486de70bfc56a16f0be.jpg)
验算:4480÷280=16
(2)36×242=8712;
![](http://img.wesiedu.com/upload/8/d4/8d4ca201ef6585e5bf74211da66856a2.jpg)
验算:8712÷242=36
(3)420×50=21000;
![](http://img.wesiedu.com/upload/8/61/8617108148d8ea32a754f743ebdeca82.jpg)
验算:21000÷420=50
(4)48×320=15360;
![](http://img.wesiedu.com/upload/9/57/95700513367c9b68eaf057ea52c06ce0.jpg)
验算:15360÷320=48
(5)57×198=11286;
![](http://img.wesiedu.com/upload/8/3b/83b29863f1e3efba47500360079e2778.jpg)
验算:11286÷198=57
(6)406×80=32480.
![](http://img.wesiedu.com/upload/e/30/e30a4f92ee8e1620bd8af95b19c942da.jpg)
验算:32480÷406=80