Explicație pas cu pas:
(8×5:4×6:10×7):(3×6:2:3×10:5)×777-4707-702=
=(40:4×6:10×7):(18:2:3×10:5)×777-4704-702
=(10×6:10×7):(9:3×10:5)×777-4704-702
=(60:10×7):(3×10:5)×777-4704-702
=(6×7):(30:5)×777-4704-702
=42:6×777-4704-702
=7×777-4704-702
=5439-4704-702
=735-702
=33
