Trả lời :
a, 8,75 + 4,65 + 2,25 = (8,75 + 2,25) + 4,65 = 11 + 4,65 = 15,65
b, (4,91 + 12,57) + (5,09 + 7,43) = (4,91 + 5,09) + (12,57 + 7,43) = 10 + 20 = 30
~Std well~
#Dương
Trả lời :
a, 8,75 + 4,65 + 2,25 = (8,75 + 2,25) + 4,65 = 11 + 4,65 = 15,65
b, (4,91 + 12,57) + (5,09 + 7,43) = (4,91 + 5,09) + (12,57 + 7,43) = 10 + 20 = 30
~Std well~
#Dương
46:24+8:24
705:45-336:45
giup minh nha. de la Tinh Bang Cach Thuan Tien nhat.
Tinh bang cach thuan tien nhat
23,4×12,5+12,5×75,6+12,5
Hay giup minh lan bai nha
tinh bang cach thuan tien
1,2*1,25+1,2*8,75
tinh bang cach thuan tien nhat
0,12 nhan 400
giup em voi
cho day so sau:
1,20+ 3,26+7,20+5,26+9,20+13,26+6,20+28,26
cac ban tinh giup minh bang cach thuan tien nhat nha, biet rang tong cac chu so deu bang nhau.
tinh bang cach thuan tien nhat
a 21/11 * 22/17 * 68/63
5/14 * 7/13 * 26/25
cac ban giup mik nha mik cam on nhieu
tinh bang cach thuan tien nhat
20,2*5,1-60,6*1,7+17,8
mik can gap giup mik nhe!
tinh bang cach thuan tien nhat a) 48,25+12,72+51,75+87,28=??
tinh bang cach thuan tien nhat:
98,54 - 41,82 - 35,72 = ...?
GIUP MINH NHE AI DUNG MINH TICH CHO ^.^