Các câu hỏi tương tự
tinh bang hai cach
3/5 x 7/21 + 7/21 x 2/5
tinh bang hai cach: (3/4+1/2)*5/7
5/7*13/21+2/7*13/21
tinh 7/5+4/3+7/5+4/3
tinh bang hai cach : {3/4+1/2}*5/7
7/15 + 4/5 b 2/3- 3/8 c 4/7 x 21/16 chia 5/8 13x42x11/33x26x35 tinh bang cach nhanh nhat
s0s sos
giup minh voi
Tinh bang hai cach :
a) 3/22*3/11*22
b) (1/2+1/3)*2/5
c) 3/5*17/21+17/21*2/5
choi hoi
tinh bang hai cach
2205 : (35 x 7)
tinh bang hai cach a)3/4 x 1/2 x 2
cach 1 : .....................................................
cach 2 : .....................................................
b) (3/4 + 1/2) x 5?7
cach 1 : .................................................................
cach 2 : .................................................................
bai 1 : tinh bang hai cach
a) 3/22 x3/11 x22 =??
b)( 1/2 + 1/3 ) x2/5 =???
c)
3/5 x 17/21 + 17/21 x 2/5 =???
CAU EASY NAY
TINH BANG CACH THUAN TIEN NHAT
2/3 * 10/21 *3/2
22/5 * 12 * 5/12
7/2 * 28/81 * 2/7
5/17 * 21/4 * 47/15 * 0