Etectuează: - 14:4+ 4):5+9] X 234 = 1150:10+25) + 25]:5= 13+3) x 20): 120 +9X11 = 793+ 200:10 - [76 + (293 - 209)]= 119:9+4):5 +9] X 234 + 500:25 + 15 X4= [420:(160 - 1 000: 8) + 24 x 5] x 10 = [20 x (8 - 200:50) + 5 X 4]:10 + 25 x 10 = Triumtare efectuand​

Etectuează 144 459 X 234 11501025 255 133 X 20 120 9X11 793 20010 76 293 209 119945 9 X 234 50025 15 X4 420160 1 000 8 24 X 5 X 10 20 X 8 20050 5 X 410 25 X 10 class=