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

### Instruction:
 汤米订购了总重量为10公斤的苹果、橙子、葡萄和草莓水果。他订购了3公斤的苹果，1公斤的橙子和3公斤的葡萄。他订购了多少公斤的草莓？


### Response:
 汤米订购了3 + 3 = <<3+3=6>>6公斤的苹果和葡萄。
他订购了6 + 1 = <<6+1=7>>7公斤的苹果、橙子和葡萄。
因此，汤米订购了10 - 7 = <<10-7=3>>3公斤的草莓。