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DAU COROANA

(-3+8)x9
(8-11)x(7-5)
8x(-15)-(5-10)x(-6)
(5-7-9)x(7-9-12)
(-2010+2009)x(-2009+2008)


Răspuns :

(-3+8)x9=45
(8-11)x(7-5)= --6
8x(-15)-(5-10)x(-6)=  --150
(5-7-9)x(7-9-12)= 70
(-2010+2009)x (-2009+2008)=1

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