脱式计算230×54 540×7怎么算?

2025-06-26 21:37:45
推荐回答(4个)
回答1:

230×54+54×70
=54×(230+70)
=54×300
=16200

回答2:

230×54
=230×6×9
=1380×9
=1000×9+300×9+80×9
=9000+2700+720
=9000+3420
=12420
540×7
=500×7+40×7
=3500+280
=3780

回答3:

230×54 +540×7
=230x54+54x70
=54x(230+70)
=54x300
=16200

回答4:


图望采纳…………………