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

### Instruction:
Ivan has 20 dice. Jerry has twice as many dice as Ivan. How many dice do they have altogether?

### Response:
 เจอร์รี่มีลูกเต๋า 2 x 20 = <<2*20=40>>40 ลูก
ดังนั้นพวกเขามีลูกเต๋าทั้งหมด 40 + 20 = <<40+20=60>>60 ลูก