简便运算(1+0.12+0.23)X(0.12+0.23+0.34) - (1+0.12+0.34)X(0.12+0.23)

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简便运算(1+0.12+0.23)X(0.12+0.23+0.34)-(1+0.12+0.34)X(0.12+0.23)简便运算(1+0.12+0.23)X(0.12+0.23+0.34)-(1+0.

简便运算(1+0.12+0.23)X(0.12+0.23+0.34) - (1+0.12+0.34)X(0.12+0.23)
简便运算(1+0.12+0.23)X(0.12+0.23+0.34) - (1+0.12+0.34)X(0.12+0.23)

简便运算(1+0.12+0.23)X(0.12+0.23+0.34) - (1+0.12+0.34)X(0.12+0.23)
(1+0.12+0.23)X(0.12+0.23+0.34) - (1+0.12+0.23+0.34)X(0.12+0.23)
=(0.12+0.23+0.34)+(0.12+0.23)×(0.12+0.23+0.34) - (0.12+0.23)-(0.12+0.23+0.34)×(0.12+0.23)
=(0.12+0.23+0.34) - (0.12+0.23)
=0.34