简便计算:41×49-49

2025-02-25 11:25:25
推荐回答(5个)
回答1:

41×49-49
=(41-1)X49
=40X49
=1960
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回答2:

41*49-49=(41-1)*49=40*(50-1)=2000-40=1940

回答3:

41×49-49=(41-1)×49=40×49=1960

回答4:

41×49-49
=(41-1)X49
=40X49
=40X(50-1)
=40X50-40
=2000-40
=1960

回答5:

(41-1)*49=490