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

### Instruction:
 一个窗户有4个玻璃板。一栋房子楼下有6个双窗户，楼上有8个单窗户。整个房子有多少个玻璃板？


### Response:
 楼下有6 x 2 = <<6*2=12>>12个窗户
整个房子有12 + 8 = <<12+8=20>>20个窗户
整个房子有20 x 4 = <<20*4=80>>80个玻璃板