49乘51加451乘26加25乘451简便计算

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49乘51加451乘26加25乘451简便计算49乘51加451乘26加25乘451简便计算49乘51加451乘26加25乘451简便计算49*51+(451*26+25*451)=49*51+51*

49乘51加451乘26加25乘451简便计算
49乘51加451乘26加25乘451简便计算

49乘51加451乘26加25乘451简便计算
49*51+(451*26+25*451)=49*51+51*451=51*500=25500

49×51+451×26+25×451
=49×51+451×(26+25)
=49×51+451×51
=(49+451)×51
=500×51
=25500