Question

calculați [0,25+(2,5-7pe4):5pe8]•100

Answer 1

[0,25 + (2,5 - 1,75) : 0,625] x 100 = 
= (0,25 + 0,75 : 0,625) x 100 =
= (0,25 + 1,2) x 100 = 
= 1,45 x 100
= 145

Answer 2

[25/100+(25/10-7/4):5/8]*100=

[25/100+(100-70totul supra 40):5/8]*100=

(25/100+30/40):5/8*100=

25+750 totul supra 100:5/8*100=

775/100:5/8*100=

775/100*8/5*100=

1240/100*100=1240