Răspuns:
Explicație pas cu pas:
A tripla inseamna a inmultii cu 3
A micsora de 100 de ori inseamna a impartii la 100
Calculam
810- 220+ 36+
210 180 14
_____ _______ ______
600 400 50
(810-210)x3:100=600x3:100=1800:100=18
(220+180)x3:100=400x3:100=1200:100=12
(36+14)x3:100=50x3:100=150:100=1.5