ta có: 91-36+536-791+5672-1308+2672=(791-91)+(536-36)+(5672+2672)-1308
=700+500+8344-1308=8236
Các câu hỏi tương tự
tinh bang cach thuan tien
a)12371-5428+1429
b)36,4*99+36+0,4
36,4x99+36+4
cac ban jup minh voi
tinh bang cach thuan tien
NT
29 tháng 10 2023 lúc 17:37
Tinh bang cach thuan tien nhat. Viet ket qua duoi dang so thap phan:
\(\dfrac{36\times48}{96\times72}=...=...\)
tinh bang cach thuan tien :
a 36 x 45 tren 6 x 5
b 56 x 63 tren 9 x 8
3 can bo chia so tien thuong nhu sau so tien cua bac hien yen la 2000000 dong so tien yen thuan la 1550000dong so tien thuan hien la 2200000 hoi moi nguoi duoc bao nhieu tien
tinh cach thuan tien 43,5x98,99+43,5:100+43,5
tinh bang cach thuan tien nhat: 2,5x12,5x8x0,4
tinh thuan tien .4/3 *699*0.75
1 Tinh bang cach thuan tien nhat
a) 9 gio 36 phut : 3 -1,25 gio:
b) 2 gio 27 phut :3 +3 gio 33phut :3 +1 gio 12 phut *2.
c) ( 3 gio 45 phut + 3, 75 gio ): 2 - 1, 5 : 2.