going to the mall


marisol and claudia go to the mall and marisol was excited to spend her 400  dollars .she got for christmas . so she first went to aeropastle and bought 2 pants for 60 dollars each and 3 shirts for 20 dollars each and she estimated she had 220 dollars left .so she decided to buy more things so she got 2 pairs of vans shoes that were 75 dollars each and she estimated she had 80 dollars left . so she got a sweetshirt that was 75 dollars including tax so she went to pay and she noticed she didin't have enough . what went wrong with her estimate?
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