Question

Dau coroana!
Calculati,respectănd ordinea efectuarii operatiilor pe rand:

a)2,56:3,2+3×(14,4-1,6):2=

b)20,12-2×(1,47+1,3×5):4=

c)1,69:1,3+(21,4-1,7×4):2

Repede va rog!Va rog scrietimi cum ati aflat rezultatul...

Answer 1

a)2,56:3,2+3×(14,4-1,6):2=
=0,8+3×12,8:2=
=0,8+38,4:2=
=0,8+19,2=20

b)20,12-2×(1,47+1,3×5):4=
=20,12-2×(1,47+6,5):4=
=20,12-2×7,97:4=
=20,12-15,94:4=
=20,12-3,985=16,135


c)1,69:1,3+(21,4-1,7×4):2=
=1,3+(21,4-6,8):2=
=1,3+14,6:2=
=1,3+7,3=8,6