[ 777,63 + 567,89 + 222,37 ] x 0,1
=[ 777,63 + 22,37 + 567,89 ] x 0,1=[1000 + 567,89 ] x 0,1=1567,89 x 0,1= 156,789Giải:
\(\left[777,63+567,89+222,37\right]\times0,1\)
\(=\left[\left(777,63+222,37\right)+567,89\right]\times0,1\)
\(=\left[1000+567,89\right]\times0,1\)
\(=1567,89\times0,1\)
\(=156,789\)
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