Tinh nhanh cac tong sau
45 /100 cong 18/35 cong 50/72 cong 17/35 cong 55/100 cong 22/72
Tinh nhanh
1/16 cong 1/32 cong 164 cong 1/128 cong 1/256 cong 1/512 cong 1/1024
Lam tung buoc ra nha thanks
tinh tong cac so chia het cho 4
tinh nhanh
3 cong 8 cong 13 cong ...cong 48
1 cong 3 cong 5 cong 7 cong ...2021
1 , tinh bang cach tien nhat
[500 cong 115 ] nhan 55 cong[ 600 cong 15 ] nhan 15 cong [ 700 - 85] nhan 85 cong [ 900 -285 ] nhan 45
giai tung buoc cho minh nha
tinh nhanh 378 nhan 24 cong 378 nhan 27 cong 49 nhan 378 . hay giup miinh tinh nhanh nhe
tinh nhanh 2cong 4 cong 6 cong 8 cong ... cong 102
Trung binh cong cua bon so bang 25. Trung binh cong cua ba so dau bang 22, trung binh cong cua ba so cuoi bang 20. Tim trung binh cong cua so thu hai va thu ba?
tinh nhanh 125 nhan 3 cong 125 nhan 2 cong 125 nhan 3 cong 125 cong 1
tinh nhanh 4 phan 5 cong 2 phan 7 cong 11 phan 5 cong 12 phan 7 cong 1 phan 5
