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POZIOMO:
a) 2,6:(8,2:4-2)=2,6:(2,05-2)=2,6:0,05=52
c) 54*(0,5 + 1/3 +4:8)= 54*( 5/10+ 1/3 +0,05)=54*( 15/30 + 10/30 + 15/30 )=54* 4/3 = 216/3=72
e) 10*(100,5-16,1: 1/5)=10*(100,5-32,2)=10*68,3=683
g) 3 i 3/4 : 15 * 1000 = 15/4 * 1/15 * 1000 = 1/4 * 1000 = 250
h) 1000 - 4/5 :0,8 = 1000 - 0,8 : 0,8=1000- 1 = 999
i) 37,1: (4-3,9) = 37,1: 0,1=371
j) (6-4 i 1/2) * (17 i 3/5 + 12,4) = 1,5 * 30 = 45
k) 0,232 : 0,4 * 100 = 0,58 * 100 = 58
PIONOWO:
b)22000 + 6 i 2/9 * 5 i 5/8 = 26035
c) (700,15+9) : 0,01 = 709,15 : 0,01 = 73915
d) 330 + 1 i 3/5 * 60 = 330 + 1,6 *60 = 330+96 = 426
f) 3,6*60 -1,3*20 = 316-26=190