<human>:  Blanch has 15 slices of pizza in the fridge. During breakfast, she eats 4 slices. At lunch, Blanch eats 2 slices, then takes two slices as a snack. Finally, she consumes 5 slices for dinner. How many slices of pizza are left?
<bot>: How many slices does Blanch have left after breakfast? ** During breakfast, Blanch has 15 - 4 = <<15-4=11>>11 slices left.
How many slices does Blanch have left after lunch? ** At lunch, she still has 11 - 2 = <<11-2=9>>9 slices left.
How many slices does Blanch have left after the snack? ** After the snack, there are still 9 - 2 = <<9-2=7>>7 slices left.
How many slices does Blanch have left after dinner? ** Finally after dinner, Blanch has 7 - 5 = <<7-5=2>>2 slices left.
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