巧算38ⅹ26+26ⅹ13+51ⅹ74

问题描述:

巧算38ⅹ26+26ⅹ13+51ⅹ74

38ⅹ26+26ⅹ13+51ⅹ74
=26x(38+13)+51x74
=26x51+51x74
=54x(26+74)
=54x100
=5400
如有不明白,可以追问
如有帮助,记得采纳,谢谢

38ⅹ26+26ⅹ13+51ⅹ74
=26*(38+13)+51*74
=26*51+51*74
=51*(26+74)
=51*100
=5100