Below is an instruction that describes a task. Write a response that appropriately completes the request in Thai. Please answer in Thai.

### Instruction:
Miss Adamson has four classes with 20 students each. She makes a study guide for her class and uses 5 sheets of paper per student. How many sheets of paper will she use for all of her students?

### Response:
 คุณอดัมสันมีนักเรียนทั้งหมด 4 x 20 = <<4*20=80>>80 คน
ดังนั้น เธอจะใช้กระดาษทั้งหมด 80 x 5 = <<80*5=400>>400 แผ่น