用竖式计算并验算.457+348=802-633=46×25

用竖式计算并验算.457+348=802-633=46×25=
2024-11-03 00:31:33
推荐回答(1个)
回答1:

(1)457+348=805

  457
+ 348

   805
   

验算:
  348
+ 457

  805
   


(2)802-633=169
  802
? 633

  169
   

验算:
  633
+ 169

  802
   


(3)46×25=1150
  
  46
× 25

 
  230
  92

  1150
   

验算:
 
  25
× 46