Chương I : Ôn tập và bổ túc về số tự nhiên
Các câu hỏi tương tự
a) frac{2}{5}+left(-frac{4}{3}right)+left(-frac{1}{2}right)
b) frac{5}{8}-left(-frac{2}{5}-frac{3}{10}right)
c) frac{1}{3}-left[left(-frac{5}{4}right)-left(frac{1}{4}+frac{3}{8}right)right]
d) frac{2}{3}-4.left(frac{1}{2}+frac{3}{4}right)
e) left(-frac{1}{3}+frac{5}{6}right).11-7
f) left(-frac{5}{9}right).frac{3}{11}+left(-frac{13}{18}right).frac{3}{11}
Đọc tiếp
a) \(\frac{2}{5}+\left(-\frac{4}{3}\right)+\left(-\frac{1}{2}\right)\)
b) \(\frac{5}{8}-\left(-\frac{2}{5}-\frac{3}{10}\right)\)
c) \(\frac{1}{3}-\left[\left(-\frac{5}{4}\right)-\left(\frac{1}{4}+\frac{3}{8}\right)\right]\)
d) \(\frac{2}{3}-4.\left(\frac{1}{2}+\frac{3}{4}\right)\)
e) \(\left(-\frac{1}{3}+\frac{5}{6}\right).11-7\)
f) \(\left(-\frac{5}{9}\right).\frac{3}{11}+\left(-\frac{13}{18}\right).\frac{3}{11}\)
A= \(\left(3-\frac{1}{4}+\frac{2}{3}\right)-\left(5+\frac{1}{3}-\frac{6}{5}\right)-\left(6-\frac{7}{4}+\frac{3}{2}\right)\)
\(-5\left(x+\frac{1}{5}\right)-\frac{1}{2}\left(x-\frac{2}{3}\right)=\frac{3}{2}x-\frac{5}{6}\)
\(\left(x+\frac{1}{5}\right)^2+1\frac{9}{25}5=2\)
hộ mik ai nhanh mik tik
\(\left(x+\frac{1}{5}\right)^2+1\frac{9}{25}=2\)
hộ mik ai nhanh mmik tik nhé
a)\(\frac{8}{11}.\frac{14}{23}+\frac{9}{23}:\frac{11}{8}-\frac{8}{11}\)
b)\(1,8.\frac{-20}{27}+\left(75\%-\frac{5}{16}\right):3\frac{1}{2}\)
giups mik nhe ai nhanh mik tik
tìm x biết :
\(a,\frac{1}{2}-\frac{2}{3}x=\frac{7}{12}\) b,/x+\(\frac{1}{2}\)/=\(\frac{3}{4}\)
Bài 1.
A( 45 x 46 + 47 x48 ) x ( 51 x 52 - 49 x 48 ) x ( 45 x 128 - 90 x 64 ) x (1995 x 1996 + 1997 x 1998 )
Bài 2.
frac{7}{13}xfrac{5}{6}xfrac{5}{13}
Bài 3.
frac{75}{100}+frac{18}{21}+frac{19}{32}+frac{1}{4}+frac{3}{21}+frac{13}{32}
Bài 4.Tính giá trị biểu thức:
a.0,1 + 0,2 + 0,3 + ... + 0,9 + 0,10 + 0,11 + ... + 0,19
b.(1999 x 1998 + 1998 x 1997) x (1 +frac{1}{2}:1frac{1}{2}- 1frac{1}{3})
GIÚP MÌK NHA MÌK CẦN GẤP
Đọc tiếp
Bài 1.
A=( 45 x 46 + 47 x48 ) x ( 51 x 52 - 49 x 48 ) x ( 45 x 128 - 90 x 64 ) x (1995 x 1996 + 1997 x 1998 )
Bài 2.
\(\frac{7}{13}\)x\(\frac{5}{6}\)x\(\frac{5}{13}\)
Bài 3.
\(\frac{75}{100}\)+\(\frac{18}{21}\)+\(\frac{19}{32}\)+\(\frac{1}{4}\)+\(\frac{3}{21}\)+\(\frac{13}{32}\)
Bài 4.Tính giá trị biểu thức:
a.0,1 + 0,2 + 0,3 + ... + 0,9 + 0,10 + 0,11 + ... + 0,19
b.(1999 x 1998 + 1998 x 1997) x (1 +\(\frac{1}{2}\):1\(\frac{1}{2}\)- 1\(\frac{1}{3}\))
GIÚP MÌK NHA MÌK CẦN GẤP
bài 1:
a, (1-frac{3}{6}2)+/frac{-7}{23}/+(-frac{4}{25})
b, sqrt{25}-sqrt{100}+sqrt{36}
c,(frac{-31}{37})5.(frac{37}{62})5
bài 2:
a,(x-frac{3}{5})24
b,2x+2x+3144
xg trc tick cho
Đọc tiếp
bài 1:
a, (1-\(\frac{3}{6}\)2)+/\(\frac{-7}{23}\)/+(-\(\frac{4}{25}\))
b, \(\sqrt{25}\)-\(\sqrt{100}\)+\(\sqrt{36}\)
c,(\(\frac{-31}{37}\))5.(\(\frac{37}{62}\))5
bài 2:
a,(x-\(\frac{3}{5}\))2=4
b,2x+2x+3=144
xg trc tick cho