Lara gave 15 + 6 = <<15+6=21>>21 stems of flowers to her grandma.

She gave away 21 + 15 = <<21+15=36>>36 stems of flowers.

Therefore, Lara put 52 - 36 = <<52-36=16>>16 stems of flowers in the vase.

# Answer

16
<|im_start|>system
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<|im_start|>user
Lara bought 52 stems of flowers at the flower shop. She gave 15 flowers to her mom and gave 6 more flowers than she gave to her mom to her grandma. She put the rest in a vase. How many stems of flowers did Lara put in the vase?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
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user
16
Lara bought 52 stems of flowers at the flower shop. She gave 15 flowers to her mom and gave 6 more flowers than she gave to her mom to her grandma. She put the rest in a vase. How many stems of flowers did Lara put in the vase?
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