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Andripopa1973
a fost răspuns

calculeza 121+(2x5x9)=,326+(4x2x7),= 518+(3x3x9)= 643+(3x2x10)= 731-(2x4x9)= 215-(1x0x8)= 331-(3x2x7)= 147-(6x1x6)=

Răspuns :

CosmoteRo
121+(2x5x9)=121+90=211
326+(4x2x7)=326+56=382
518+(3x3x9)=518+81=599
643+(3x2x10(=643+60=703
731-(2x4x9)=731-72=659
215-(1x0x8)=215
331-(3x2x7)=331-42=289
147-(6x1x6)=147-36=111

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