Question

Efectuează:

a)1000-25*25+35*35:5
b)2015+100:4*75-123:1
c)5*(50*20-12*56)-800*2
d)150*(1015-975)-(975-88:8).
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Answer 1

a) 1000-25×25+35×35:5=
1000-625+1225:5=
1000-625+245=620
b)2015+100:4×75-123:1=
2015+25×75-123=
2015+1875-123=3767
c)5×(50×20-12×56)-800×2=
5×(1000-672)-1600=
5×328-1600=
1640-1600=40
d)150×(1015-975)-(975-88:8)=
150×40-(975-11)=
6000-964=5036