\(11.25+95.11+89.51+69.89\)
\(=11\left(25+95\right)+89\left(51+69\right)\)
\(=\left(11.120\right)+\left(89.120\right)\)
\(=120\left(11+89\right)\)
\(=120.100\)
\(=12000\)
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