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Three-digit math diary?
Hello, math diary, who wants to add up three digits?

It's getting cold. I'm going to the clothing factory with my parents to buy cotton-padded jackets this weekend. The factory shop is in the lobby on the first floor, 400 square meters. It's really spacious We were lucky enough to catch up with the promotion discount. I chose a short and thin down jacket of sea blue, 199 yuan; My mother bought a 636 yuan Burgundy long down jacket under my father's staff. Dad is very stylish, saying that he doesn't need to buy it himself, as long as our mother and son dress decently, he will be happy. When I got to the cashier, I did mental arithmetic.

199+636=835 yuan.

After the payment, our family of three walked out of the factory store. I clearly heard the voice of the beautiful sister at the cashier behind me: "This must be a happy family of three."

For your reference, please adopt it if you are satisfied. Thank you.