\(2345-1000:\left(19-2\left(21-18\right)^2\right)\)
\(2345-1000:\left(19-2.3^2\right)\)
\(2345-1000:\left(19-2.9\right)\)
\(2345-1000:\left(19-18\right)\)
\(2345-1000:1\)
\(2345-1000\)
\(1345\)
2345 - 1000 : [ 19 - 2 ( 21 - 18 )2 ]
= 2345 - 1000 : ( 19 - 2.32 )
= 2345 - 1000 : ( 19 - 2.9 )
= 2345 - 1000 : ( 19 - 18 )
= 2345 - 1000 : 1
= 2345 - 1000
= 1345
\(2345-1000:\left[19-2\left(21-18\right)^2\right]\)
\(=2345-1000\left[19-2.3^2\right]\)
\(=2345-1000\left[19-2.9\right]\)
\(=2345-1000\left[19-18\right]\)
\(=2345-1000.1\)
\(=1345\)
2345-1000:[19-2(21-18)^2]
2345-1000:[19-2.3^2]
2345-1000:[19-2.9]
2345-1000:[19-18]
2345-1000:1
2345-1000
=1345