a)38*109+6840:10
4142+684
4826
b)100.000-68*125+575
100.000-8500+575
91.500+575
92075
c)175*10+56*100:25
1750+56*100:25
1750+5600:25
1750+224
1975
d)4270+21096:36-4700:100
4270+586-4700:100
4270+586-47
4856-47=4809
e)1000+5200:100+82:(41+0)
1000+5200:100+82:41
1000+52+2
1000+54
1054
SUCCCES LA SCRIS :)