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Va rog sa ma ajutati: 300-400:100x9= 231+600:10x3 200:10x9-24x5= (5x8x10-136)x100:10=

Răspuns :

300-400:100x9=300-4X9=300-36=264

231+600:10x3=231+60x3=231+180=411 

200:10x9-24x5=20X9-100=180-120=60

(5x8x10-136)x100:10=(40x10-136)x100:10=(400-136)x100:10=264X100:10=26400:10=2640