human
Thomas has 25 drawings to display. 14 of the drawings were made using colored pencils. 7 of the drawings were made using blending markers. The rest of the drawings were made with charcoal. How many are charcoal drawings?
assistant
How many colored pencil and blending marker drawings did Thomas make? ** Thomas made 14 + 7 = <<14+7=21>>21 colored pencil and blending marker drawings.
How many charcoal drawings did Thomas make? ** Thomas made 25 total drawings – 21 colored pencil and blending marker drawings = <<25-21=4>>4 charcoal drawings.
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