75x50竖式计算?
2个回答
2020-04-17
展开全部
直接简算就行
=25×50×3
=3×(25×48+25×2)
=3×(25×4×12+50)
=3×(100×12+50)
=3×1250
=3750
竖式也行:
7 5
× 5 0
------------
3 7 5 0
=25×50×3
=3×(25×48+25×2)
=3×(25×4×12+50)
=3×(100×12+50)
=3×1250
=3750
竖式也行:
7 5
× 5 0
------------
3 7 5 0
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