5,5,5,5,5:them vao day cac dau,dau ngoac,de viet ra 1 bieu thuc co gia tri la100
giải giúp nha
dung 5 chu so 1,2,3,4,5 va dau cac phep , dau ngoac de viet bieu thuc co gia tri bang 1
giúp nhoa . cảm ơn nhiều
ai trả lời nhanh nhất mình sẽ k cho nè
dung nam chu so 5 ,dau cac phep tinh va dau ngoac (neu can ),hay viet mot bieu thuc co gia tri bang 6
dung 1 so chu so 1 va dau cac phep tinh ke ca ngoac de viet thanh bieu thuc co gia ti 100. sao cho dung it chu sao 1 nhat
Voi sau chu so 3 va dau ngoac, dau phep tinh va so mu. Hay viet thanh bieu thuc co gia tri 106 bang 3 cach.
cho bieu thuc:
A=(6-2/3+1/2)-(5+5/3-3/2)-(3-7/3+5/2)
hay tinh gia tri cua A theo hai cach
cach 1:truoc het tinh gia tri tung bieu thuc trong ngoac
cach 2:bo dau ngoac roi nhom cac so hang thich hop
C1: \(A=\left(\frac{36}{6}-\frac{4}{6}+\frac{3}{6}\right)-\left(\frac{150}{30}+\frac{50}{30}-\frac{45}{30}\right)-\left(\frac{18}{6}-\frac{14}{6}+\frac{15}{6}\right)\)
\(=\frac{35}{6}-\frac{155}{30}-\frac{19}{6}=\frac{35}{6}-\frac{31}{6}-\frac{19}{6}=-\frac{15}{6}=-2\frac{1}{2}\)
C2: \(6-\frac{2}{3}+\frac{1}{2}-5-\frac{5}{3}+\frac{3}{2}-3+\frac{7}{3}-\frac{5}{2}\)
\(=\left(6-5-3\right)-\left(\frac{2}{3}+\frac{5}{3}-\frac{7}{3}\right)+\left(\frac{1}{2}+\frac{3}{2}-\frac{5}{2}\right)\)
\(=-2-0-\frac{1}{2}=-2\frac{1}{2}\)
cho 8 so 8 va cac dau hay lam ra mot bieu thuc co gia tri la 1000
\(888+88+8+8+8=1000\)
\(\left(8888-888\right)\div8=1000\)
với nam chu so 2 hay lap cac so va dung dau phep tinh de lap mot bieu thuc co gia tri bang 888
ta lap duoc bieu thuc co gia tri bang 888 la
222*2*2
ta lap duoc bieu thuc co gia tri bang 888 la .2 * 2 *222
Cho biet a,b,c la cac so co 1 chu so . Viet tiep vao cho cham :
a, Gia tri lon nhat cua bieu thuc a+b+c= .......
b, Gia tri be nhat cua bieu thuc a+b+c = .......
a+b+c lon nhat=9+9+9=27
a+b+c be nhat =0+0+0=0
tick nha
o minh cung dang dinh hoi cau ay
giup minh voi
cho bieu thuc A=3*15+18:6+3. hay dat dau ngoac vao dung cho de:
a) A=47
b) A la so be nhat co the
c) A la so lon nhat co the