简便方法:8.7*2.6+6.4*8.7+8.7=?

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简便方法:8.7*2.6+6.4*8.7+8.7=?简便方法:8.7*2.6+6.4*8.7+8.7=?简便方法:8.7*2.6+6.4*8.7+8.7=?8.7*2.6+6.4*8.7+8.7=8.

简便方法:8.7*2.6+6.4*8.7+8.7=?
简便方法:8.7*2.6+6.4*8.7+8.7=?

简便方法:8.7*2.6+6.4*8.7+8.7=?
8.7*2.6+6.4*8.7+8.7
=8.7*(2.6+6.4+1)
=8.7*10
=87