<human>:  Doc's Pizza contains 6 pieces of pizza. Ten fourth-graders each bought 20 pizzas from Doc's Pizza and put them in their box. How many pieces of pizza are the children carrying in total?
<bot>: How many pieces of pizza did each fourth-grader buy? ** If Each fourth-grader bought 20 pizzas, with each pizza having 6 pieces, each fourth-grader had a total of 20*6 = <<20*6=120>>120 pieces of pizza in their box.
How many pieces of pizza did the children buy? ** Ten fourth-graders each bought 20 pizzas, and since the 20 pizzas had 120 pieces, the total number of pizzas in the students' boxes is 120*10 = <<120*10=1200>>1200 pieces.
#### 1200