Question

90:10:3×(54:9:2+2×10:5)-10×4:8+4×4:8

Answer 1

90:10:3x(54:9:2+2x10:5)-10x4:8+4x4:8=
=9:3x(6:2+20:5)-40:8+16:8
=3x(3+4)-5+2
=3x7-5+2
=21-5+2
=16+2
=18


sper că te-am ajutat :D

Answer 2

=90:10:3*(6:2+2*10:5)-10*4:8+4*4:8=
=90:10:3*(3+2*10:5)-10*4:8+4*4:8=
=90:10:3*(3+20:5)-10*4:8+4*4:8=
=90:10:3*(3+4)-10*4:8+4*4:8=
=90:10:3*7-10*4:8+4*4:8=
=9:3*7-10*4:8+4*4:8=
=3*7-10*4:8+4*4:8=
=21-10*4:8+4*4:8=
=21-40:8+4*4:8=
=21-5+4*4:8=
=21-5+16:8=
=21-5+2=
=16+2=
=18.