用竖式计算,其中带*的要验算.321×64=858÷39=*63×190=960÷32=409×23=*362÷72

用竖式计算,其中带*的要验算.321×64=858÷39=*63×190=960÷32=409×23=*362÷72=

(1)321×64=20544

(2)858÷39=22

(3)*63×190=11970

验算
(4)960÷32=30

(5)409×23=9407

(6)*362÷72=5…2

验算:
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