Bocdanibmask
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II. Calculează: a) 420 - 99 : 3+ (79 - 54) x 6 = b) 1 200 - (24 x 7 + 96 : 4 - 150 : 3) x 8 = c) 7 ~ 14 : 2 + 88: (19 - 3 5) = d) (8 x 43 +9 x 12 - 7 x 36) - (190 + 70 : 7 - 12 ~ 5) = e) 90 - 90 : 9 + 90 x 9 = f) 734 – 22 : 2 - (40 : 5 – 2 x 3) x 3 = 9) (52 + 48): 10 - (81 : 9 - 48 : 6 + 56 : 8): 4 = h) (32 : 4 + 12 : 3 + 82 x 3) x 2 = 1) (860 - 6 x 15 x 9): 5 + 218 x 3 - (424 - 400) : 6 = Exercitii • Probleme • Probe de evaluare
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Dianageorgiana794ask

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a) =420-33+25·6=420-33+150=537

b) =1200-(168+24-50)·8=1200-142·8=1200-1136=64

c) =98:2+88:(19-15)=49+88:4=49+22=71

d) ?

e) = 90-10+810=80+810=890

f) = 734-11-(8-6)·3=734-11-2·3=734-11-6=723-6=717

g) = 100:10-(9-8+7):4=10-8:4=10-2=8

h) = (8+4+246)·2=258·2=516

i) =(860-810):5+654-24:6=50:5+654-4=10+654-4=664-4= 660

Mama80ask

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