验算是什么意思?

用两种方法验算.
图片尺寸450x427
568÷37怎么验算
图片尺寸624x832
怎么验算
图片尺寸450x208
200-(45 25)=130怎么验算?
图片尺寸3456x4608
2768÷6.08怎么验算?
图片尺寸2976x3968
184 276验算题咋验算才对能
图片尺寸486x648
228×36的验算竖式怎么算
图片尺寸780x1040
8.05×38怎样验算
图片尺寸1672x3904
求乘法验算
图片尺寸531x434
52乘34等于1768怎么验算.
图片尺寸1280x1024
5x(`o,8 x)=6,4解方程并验算
图片尺寸1920x2560
352 213-187怎么写验算
图片尺寸865x718
46×387验算怎么算
图片尺寸744x992
验算34x55,28x47,21x1,24x35
图片尺寸744x992
2-15.6竖式验算四年级
图片尺寸816x612
怎么验算
图片尺寸521x438
36×19验算
图片尺寸3120x4160
验算是什么?发图给我,谢谢! *^_^*
图片尺寸640x345
770÷66怎么验算?
图片尺寸3120x4160
小学三年级数学下册除法验算ppt
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