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Deividcrutoi
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Efectuati: a)6,5+(1,2-4,(3))-9,9:3+7,4x5-450=?

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Răspuns :

Cristinatibulca
6,5+(12/10-39/9)-3,3+37-450=65/10+(108/90-390/90)-3,3+37-450=
585/90-282/90-33/10+37-450=
303/90-297/90+37-450=
6/90+37-450=15+37-450=52-450=-398

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