34,73+18,27:9=34,73+2,03=36,76

0,546 ;0,26 ;27,2=2,1:27,2=??????????

8,16 :(1,32+3,48)-0,345=1,355

(131,4-80,8).2,3-21,84=94,54

nhớ k cho mk nha

mk cảm ơn

cảm ơn bn nha

2,5 x 1,25 = 3,125

34,73 + 18, 27 : 9 = 36,76

nhớ bấm dùm cho mk nha!

2.5x4x1.25=12.5

34.73+18.27:9=36.76

a)23/5-1/2+5/4=92/20-10/20+25/20=107/20

b)47,31-18,27-8,27+4,6=25,37

a: =4,6-2,5+2+1,25=5,35

b: =47,31+4,6-26,54

=25,37

giúp mình với

4 3/5 - ( 5/2 - 2 ) + 5/4 

= 23/5 -   1/2    + 5/4

=      41/10      + 5/4

=        57/20

a) 2³.15 -[115-(12-5)² ]

= 2³.15 -[115-36]

= 8.15 -79

= 120-79

=41

b)5.[(85 - 35 : 7) :8 + 90 ] - 50

=5 .[80:8+90]-50

=5.100-50

=500-50

=450

c){[261 - ( 36-31)³.2 ]-9}.1001

={[261 - 125.2 ]-9}.1001

={[261 -250 ]-9}.1001

={11-9}.1001

=2.1001

=2002

d)3.10² - [1200 - ( 4² - 2.3)^3]

=3.100-[1200 -(16-6)³ ]

=300-[1200-1000]

=300-200

=100

\(a)2^3\cdot15-[115-(12-5)^2]\\=8\cdot15-(115-7^2)\\=120-(115-49)\\=120-66\\=54\\---\\b)5\cdot[(85-35:7):8+90]-60\\=5\cdot[(85-5):8+90]-60\\=5\cdot(80:8+90)-60\\=5\cdot(10+90)-60\\=5\cdot100-60\\=500-60\\=440\)

\(---\)

\(c,\left\{\left[261-\left(36-31\right)^3\cdot2\right]-9\right\}\cdot1001\)

\(=\left[\left(261-5^3\cdot2\right)-9\right]\cdot1001\)

\(=\left[\left(261-125\cdot2\right)-9\right]\cdot1001\)

\(=\left[\left(261-250\right)-9\right]\cdot1001\)

\(=\left(11-9\right)\cdot1001\)

\(=2\cdot1001\)

\(=2002\)

\(---\)

\(d,3\cdot10^2-\left[1200-\left(4^2-2\cdot3\right)^3\right]\)

\(=3\cdot100-\left[1200-\left(16-6\right)^3\right]\)

\(=300-\left(1200-10^3\right)\)

\(=300-\left(1200-1000\right)\)

\(=300-200\)

\(=100\)

#\(Toru\)