9 + 5 + 3 + 2 + 4 + 6 + 5 = 34

Học tốt ^^

k nha

9 + 5 + 3 + 2 + 4 + 6 + 5 = ???

Trả lời

9 + 5 + 3 + 2 + 4 + 6 + 5 = 24

hok tốt , kb r

= 34 nha Bông

1 + 2 + 6 + 5 + 8 + 9 + 2 = 33 

Chúc bạn hok tốt nha!

1 + 2 + 6 + 5 + 8 + 9 + 2 

= ( 1 + 9 ) + ( 2 + 8 ) + 6 + 5 + 2

= 10 + 10 + 6 + 5 + 2

=33

= 33 nè Bông ! Nay chưa bùn ngủ nè ! Ib nch nhé 

1 + 2 + 5 + 7 + 9 + 1 + 8 = 33

mk kb vs bạn rồi. tk mk nha

= 33 nha.mk kb vs bn rùi!!!

hk tốt!!!!

9 + 2 + 11 + 2 + 3 + 5 + 6 + 9 = 47 !

9 + 2 + 11 + 2 + 3 + 5 + 6 + 9 =  ????

tra loi

9 + 2 + 11 + 2 + 3 + 5 + 6 + 9

= 47

Chào​ bạn.

Đ​ể​ mình​ giải​ giúp nha!

  9+2+11+2+3+5+6+9

= (9+11)+(2+3+5)+(2+6+9)

=20+10+17

=47

Mình​ gửi​ lời​ mời rồi đ​ó!

A)1

B)1

C1

BN TK  MK NHA XONG MK KB

Tính:

\(\frac{4}{7}+\frac{3}{7}=\frac{4+3}{7}=\frac{7}{7}=1\)\(1\)

\(\frac{11}{9}-\frac{2}{9}=\frac{11-2}{9}=\frac{9}{9}=1\)

\(\frac{2}{6}+\frac{5}{6}-\frac{1}{6}=\frac{2+5-1}{6}=\frac{6}{6}=1\)

Học tốt! 

\(\frac{4}{7}\)\(+\)\(\frac{3}{7}\)\(=\)\(1\)

\(\frac{11}{9}\)\(-\)\(\frac{2}{9}\)\(=\)\(1\)

\(\frac{2}{6}\)\(+\)\(\frac{5}{6}\)\(-\)\(\frac{1}{6}\)\(=\)\(1\)

trả lời câu hỏi này giúp mình nha

1^3-3^5-(-3^5)+1^64-2^9-1^36+1^15

=1+(-3^5+3^5)+1-2^9-1+1

=2-2^9

=-510

\(\left(-\dfrac{1}{2}\right)^2\div\dfrac{1}{4}-2\times\left(-\dfrac{1}{2}\right)^2\\= \dfrac{1}{4}\div\dfrac{1}{4}-2\times\dfrac{1}{4}\\ =1-\dfrac{1}{2}\\ =\dfrac{1}{2}\)

\(\left(-2\right)^3\times-\dfrac{1}{24}+\left(\dfrac{4}{3}-1\dfrac{5}{6}\right)\div\dfrac{5}{12}\)

=  \(-6\times-\dfrac{1}{24}+\left(\dfrac{4}{3}-\dfrac{11}{6}\right)\div\dfrac{5}{12}\)

=  \(\dfrac{1}{4}+-\dfrac{1}{2}\div\dfrac{5}{12}\)

=  \(\dfrac{1}{4}+-\dfrac{6}{5}\)

=  \(\dfrac{1}{4}-\dfrac{6}{5}\)

=  \(-\dfrac{19}{20}\)

\(\left(6\dfrac{4}{9}+\dfrac{7}{11}\right)-\left(4\dfrac{4}{9}-2\dfrac{4}{11}\right)\\ =\dfrac{58}{9}+\dfrac{7}{11}-\dfrac{40}{9}+\dfrac{26}{11}\\ =\dfrac{58}{9}-\dfrac{40}{9}+\dfrac{7}{11}+\dfrac{26}{11}\\ =12+3\\ =15\)

\(a,\left(\dfrac{-1}{2}\right)^2:\dfrac{1}{4}-2\left(-\dfrac{1}{2}\right)^2\)

\(=\left(-\dfrac{1}{2}\right)^2\left(4-2\right)\)

\(=\dfrac{1}{4}.2=\dfrac{1}{2}\)

\(b,\left(-2\right)^3.\dfrac{-1}{24}+\left(\dfrac{4}{3}-1\dfrac{5}{6}\right):\dfrac{5}{12}\)

\(=\left(-8\right).\dfrac{-1}{24}+\left(-\dfrac{1}{2}\right).\dfrac{12}{5}\)

\(=\dfrac{1}{3}+\left(-\dfrac{1}{5}\right)=\dfrac{2}{15}\)

\(c,\left(6\dfrac{4}{9}+\dfrac{7}{11}\right)-\left(4\dfrac{4}{9}-2\dfrac{4}{11}\right)\)

\(=\dfrac{701}{99}-\dfrac{206}{99}=\dfrac{495}{99}=5\)

\(d,10\dfrac{1}{5}-5\dfrac{1}{2}.\dfrac{60}{11}+\dfrac{3}{15\%}\)

\(=\dfrac{51}{5}-30+20=\dfrac{1}{5}\)

\(e,\dfrac{5}{7}.\dfrac{5}{11}+\dfrac{5}{7}.\dfrac{2}{11}-\dfrac{5}{7}.\dfrac{14}{11}\)

\(=\dfrac{5}{7}\left(\dfrac{5}{11}+\dfrac{2}{11}-\dfrac{14}{11}\right)=\dfrac{5}{7}.\left(-\dfrac{7}{11}\right)\)

\(=-\dfrac{5}{11}\)

\(f,\dfrac{-5}{7}.\dfrac{2}{11}+\left(-\dfrac{5}{7}\right).\dfrac{9}{11}+1\dfrac{5}{7}\)

\(=\left(-\dfrac{5}{7}\right)\left(\dfrac{2}{11}+\dfrac{9}{11}\right)+\dfrac{12}{7}\)

\(=\left(-\dfrac{5}{7}\right)+\dfrac{12}{7}=1\)

\(10\dfrac{1}{5}-5\dfrac{1}{2}\times\dfrac{60}{11}+3\div15\%\\ =\dfrac{51}{5}-\dfrac{11}{2}\times\dfrac{60}{11}+3\div\dfrac{15}{100}\\ =\dfrac{51}{5}-30+20\\ =10,2-30+20\\ =0,2\)

\(\dfrac{5}{7}\times\dfrac{5}{11}+\dfrac{5}{7}\times\dfrac{2}{11}-\dfrac{5}{7}\times\dfrac{14}{11}\\ =\dfrac{5}{7}\times\left(\dfrac{5}{11}+\dfrac{2}{11}-\dfrac{14}{11}\right)\\ =\dfrac{5}{7}\times-\dfrac{7}{11}=-\dfrac{5}{11}\)

\(-\dfrac{5}{7}\times\dfrac{2}{11}+-\dfrac{5}{7}\times\dfrac{9}{11}+1\dfrac{5}{7}\\ =-\dfrac{5}{7}\times\dfrac{2}{11}+-\dfrac{5}{7}\times\dfrac{9}{11}+\dfrac{12}{7}\\ =-\dfrac{5}{7}\times\left(\dfrac{2}{11}+\dfrac{9}{11}\right)+\dfrac{12}{7}\\ =-\dfrac{5}{7}\times1+\dfrac{12}{7}\\ =1\)

ko ai kiểm tra hộ mình à!!!!!!

bạn làm đúng rùi nha

11/18<5/6