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9. Kevin bought some biscuits. He ate 12 of them, gave 13 to his sister and 5 to his friend. After receiving 3 more biscuits from his father, he now has 23. How many biscuits did Kevin buy?​

Répondre :

Réponse :

Kevin bought 50 biscuits .

Explications :

Bonjour ,

Prenons exemple si Kevin avait 0 biscuits

Il en mange 12 ( -12 )

Il en donne 13 a sa sœur ( -13 )

Et 5 a son ami ( -5 )

Mais son père lui en donne 3 ( +3 )

-12-13-15 = -30

-30 + 3 = -27

Combien de biscuit il aurait fallu pour avoir 23 ?

-27 + 50 = 23

Kevin a donc acheter 50 biscuits

En espérant t'avoir aider ; bonne journée .