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K
Khách
Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
8 tháng 12 2021
Gọi phép trừ là : a-b
Ta có : (a+5)-(b-5)=a+5-b+5=a-b+10
Vậy hiệu mới tăng thêm 10 đơn vị so với hiệu cũ
QD
15
7 tháng 12 2021
TL:
Cửa hàng còn số cái bánh là:
45 - 32 = 13 (cái)
Đ/S: 13 cái bánh.
##hok~tốt##
nếu bạn ngứa tay thì đâph lun máy tính đi còn để làm gì nữa nếu còn ngứa xé tiền cho ba mẹ vui , rảnh quá chừng
bn nên đến gặp bác sĩ