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124,5·(7,82:10-0,54)-2,8

Răspuns :

124,5×(7,82:10-0,54)-2,8
=124,5×(0,782-0,54)-2,8
=124,5×0,242-2,8
=30,129-2,8
=27,329
=124,5·(7,82:10-0,54)-2,8=
=124,5·(0,782-0,54)-2,8=
=124,5·0,242-2,8=
=30,129-2,8=
=27,329=