Tính thuận tiện
( -25.3/8.0,4)-[ -12,5.1/8.0,8]
giúp m vs thank
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\(\dfrac{14}{9}\) x \(\dfrac{11}{8}-\dfrac{3}{8}\) x \(\dfrac{14}{9}\)
\(=\dfrac{14}{9}\) x \(\left(\dfrac{11}{8}-\dfrac{3}{8}\right)\)
\(=\dfrac{14}{9}\) x \(\dfrac{8}{8}=\dfrac{14}{9}\) x \(1\)
\(=\dfrac{14}{9}\)
(2000+8000)+(19999+1)
=10000+2000
=3000
chuc chi hoc tot!
\(9876\cdot27+9876\cdot33+9876+40+9876\)
=\(9876\cdot\left(27+33+40\right)\)
=\(9876\cdot100\)
\(987600\)
\(\frac{3}{10}:\frac{7}{6}:\frac{3}{7}\)
\(=\frac{3}{10}\times\frac{6}{7}\times\frac{7}{3}\)
\(=\frac{3}{5}\)
Hok Tốt!!!
\(\frac{3}{10}:\frac{7}{6}:\frac{3}{7}\)
\(=\left(\frac{3}{10}:\frac{3}{7}\right):\frac{7}{6}\)
\(=\frac{7}{10}:\frac{7}{6}\)
\(=\frac{3}{5}\)
0,087 + 1,123 + 1,913 + 0,877
= ( 0,087 + 1,123 ) + ( 1,913 + 0,877 )
= 1, 210 + 2,790
= 4
=(8*125)*2019-(125*4)*2018
=1000*2019-1000*2018
=1000*(2019-2018)=1000*1=1000
8 x 2019 x125 - 250 x 2018 x 4
= ( 8x 125) - ( 250x 4)x 125
=1000-1000 x 125
0 x 125
= 0
mk chẳng bt đúng ko nữa
a) 125 x (8 x 123)
= (125 x 8) x 123
= 1000 x 123
= 123000
b) 55 x 739 + 55 x 261 - 5000
= 55 x (739 + 261) - 5000
= 55 x 1000 - 5000
= 55000 - 5000
= 50000
a) 125 × (8 × 123)
= (125 × 8) × 123
= 1000 × 123
= 123000
b) 55 × 739 + 55 × 261 - 5000
= 55 × (739 + 261) - 5000
= 55 × 1000 - 5000
= 55000 - 5000
= 50000
\(\dfrac{121212}{242424}+\dfrac{1313}{2626}+\dfrac{20212021}{40424042}\)
= \(\dfrac{12}{24}+\dfrac{13}{26}+\dfrac{2021}{4042}\)
= \(\dfrac{1}{2}+\dfrac{1}{2}+\dfrac{1}{2}\)
= \(\dfrac{3}{2}\)
121212/242424+1313/2626+20212021/404244024
= 1/2+1/2+1/2
=3/2