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100-10x(100-10x10+10)=
(36-26)x(56-46)-(9x9-8x9)x7=

(3x9+8x6-5x5-9x5)x8= ajutatima va rog frumos va rog :(


Răspuns :

100-10x(100-10x10+10)= 100-10x(100-100+10)= 100-10x(0+10)= 100-10x10= 100-100=0 (36-26)x(56-46)-(9x9-8x9)x7= 10x10-(81-72)x7= 100-9x7= 100-63=37 (3x9+8x6-5x5-9x5)x8= (27+48-25-45)x8= (75-25-45)x8= (50-45)x8= 5x8=40