What if i had 900 dollars and sold on 600 on groceries how much will i have in all?

If you are saying you had 900 dollars then spent 600 on groceries you will have 300 dollars left. 900-600=300. If your doing addition then you will have 1,500 dollars in all. 900 + 600 = 1500

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Answer dot(3) is most used;