25×48怎么简便运算
2个回答
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简便算法如下:
方法一:
解:25×48
=100/4x48
=100/4x4x12
=100x12
=1200
方法二:
解:25×48
=25x(50-2)
=25x50-25x2
=1250-50
=1200
方法三:
解:25×48
=(2x4)(2×8+4×5)(5×8)
=8(36)(40)
=8(40)(0)
=1200
方法一:
解:25×48
=100/4x48
=100/4x4x12
=100x12
=1200
方法二:
解:25×48
=25x(50-2)
=25x50-25x2
=1250-50
=1200
方法三:
解:25×48
=(2x4)(2×8+4×5)(5×8)
=8(36)(40)
=8(40)(0)
=1200
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