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

### Instruction:
 莱拉和穆罕默德决定把他们的旧玩具捐给一个儿童之家。莱拉捐了2袋，每袋25个玩具。穆罕默德的捐赠是3袋，每袋19个玩具。穆罕默德捐赠了多少个玩具？


### Response:
 莱拉捐了2 * 25 = <<2*25=50>>50个玩具
穆罕默德的捐赠是3 * 19 = <<3*19=57>>57个玩具
差额是57 - 50 = <<57-50=7>>7个玩具
因此，穆罕默德额外捐赠了7个玩具。