Question

dau coroana l) 525:5+(480:8-30) +140:7 -13=
m) 2+(3x4:6x50-50)+(50:10x6:3+20)=

Answer 1

525:5+(480:8-30)+140:7-13=
525:5+(50-30)+140:7-13
525:5+20+140:7-13
105+20+20-13
125+20-13
145-13
132

m)2+(3×4:6×50-50)+(50:10×6:3+20)=
2+(12:6×50-50)+(5×6:3+20)
2+(6×50-50)+(30:3+20)
2+(350-50)+(10+20)
2+300+30
302+30
332