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Problems with an Unknown Start
Solve each problem. Show your work. Write an equation.
5 Franco had some flower stickers. He gave 43 of his flower stickers to his sister. Now Franco has 20 flower stickers left. How many flower stickers did Franco have to start?
6 Kira had some sun stickers. She went to Sticker Station and bought 53 more sun stickers. Now she has 90 sun stickers. How many sun stickers did Kira have to start?