Question

Calculeaza respectând regulile pe care le introduc parantezele în calcule. a.125:5+(13+64:2)=
b. (37-18:2):7+108:2=
c.6×9:[6-(13-18:2)]=
d. [(9-6)×(8+9)]+100:(4+6)=
e.5×[3600:30-81:(54:6)]=
f.128:4+[2×(2222:22-22:22)]:10=
g.36:9+4×[20+6×(100:4-42:2)]=
h.126-[(63×2:6+109)×(75:25+21:3)]:10=
Vă rog să mă ajutați!!!Dau coroana Mulțumesc.

Answer 1

a) 125:5+(13+64:2)= 25+(13+32)= 25+ 45= 70
b) (37-18:2):7+108:2= (37-9):7+54= 28:7+54= 4+54= 58
c) 6×9:[6-(13-18:2)]= 6×9:[ 6-(13-9)]=6×9:(6-4)=6×9:2=54:2=27
d) [(9-6)×(8+9)]+100:(4+6)= (3×17)+100:10= 51+10=61
e) 5×[3600:30-81:(54:6)]= 5×(120-81:9)= 5×(120-9)= 5× 111= 555
f) 128:4+[2×(2222:22-22:22)]:10= 32+[2×(101-1)]:10= 32+(2×100):10=32+200:10=32+20=52
g)36:9+4×[20+6×(100:4-42:2)]= 4+4×[20+6×(25-21)]=4+4×(20+6×4)=4+4×(20+24) =4+4×44=4+176=180
h) 126-[(63×2:6+109)×(75:25+21:3)]:10=126-[(21+109)×(3+7)]:10=126-( 130×10):10=126-1300:10=126-130= -4