daralyzzzz daralyzzzz

31-03-2020
Mathematics

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ben says he can write three more equations because he knows 6 + 13 = 19. Is he right or wrong? Tell how you know.

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lauren6798976 lauren6798976

31-03-2020

Answer: He is right. He could do 13+6=19, 19-6=13 and 19-13=6. So that's how you know he is right.

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