Question

Calculati:a) 5375+2•[5+3(25,2:0,9+7,1)]= b) 2,3•[5,4+3,1•(253,7•0,2+4,5)]=

Answer 1

a) 5375+2x[5+3(28+7,1)=5375+2(5+110,3)=5375+220,6=5595,6 b) 2,3(5,4+3,1:55,24)=2,3(5,4+171,244)=2,3x176,644=406,2812