6.81加6.81乘99加16.9除0.13又简便方法算

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6.81加6.81乘99加16.9除0.13又简便方法算6.81加6.81乘99加16.9除0.13又简便方法算6.81加6.81乘99加16.9除0.13又简便方法算6.81+6.81*99+16.

6.81加6.81乘99加16.9除0.13又简便方法算
6.81加6.81乘99加16.9除0.13又简便方法算

6.81加6.81乘99加16.9除0.13又简便方法算
6.81+6.81*99+16.9/0.13
=6.81*(1+99)+(130*0.13)/0.13
=6.81*100+130*(0.13/0.13)
=681+130
=811