Question

Calculati

a)825 ⋅ 175 – 25 ⋅ 825 – 825 ⋅ 50 ;
b) 33 ⋅ 672 – 33 ⋅ 322 – 250 ⋅ 33.

Answer 1

a) dam factor comun pe 825 si atunci obtinem
825×(175-25-50)=825×100=82 500
b) dam factor comun pe 33 si obtinem
33×(672-322-250)=33×100=3 300

Answer 2

a) 144.375-20.625-41.250=123.750-41.250=82.500

b) 22.176-10.626-8.259=11.550-8.259=3.291