a, 35600 : 25 : 4 = (35600 : 4) : 25 = 8900 : 25 = 356

b, 359 x 47 – 259 x 47 = (359 – 259) x 47 = 100 x 47 = 4700

a, 35600 : 25 : 4

= 35600 : ( 25 . 4 )

= 35600 : 100

= 356

b, 359 . 47 - 259 . 47

= 47 . ( 359 - 259 )

= 47 . 100

= 4700

\(=25\%+25\%\times38+25\%\times50+25\%\times11\)

\(=25\%\times\left(1+38+50+11\right)=25\%\times100=25\)

\(\dfrac{25}{100}+\dfrac{1}{4}\times38+25\%\times50+0,25\times11\)

\(0,25+0,25\times38+0,25\times50+0,25\times11+1\)

\(0,25\times\left(38+50+11+1\right)\)

\(0,25\times100\)

\(25\)

= (30 x 2) + (20 x 5) + (25 x 4)

= 60 + 100 + 100

= 260

(30 : 0,5) + (20 : 0,2) + (25 : 0,25)

= (30 x 2) + (20 x 5) + (25 x 4)

= 60 + 100 + 100

= 260

`(30:0,5)+(20:0,2)+(25:0,25)`

`=(30xx2)+(20xx5)+(25xx4)`

`= 60  + 100 + 100`

`= 160 + 100`

`= 260`

= (4 x 25) x 113 - (5 x 20) x 112

= 100 x 113 - 100 x 112

= 100 x (113 - 112)

= 100 x 1

= 100

4×113×25-5×112×20

=(4×25)×113-(5×20)×112)

=100×113-100×112

=100×(113-112)

=100×1

=100

trước tiên ta lấy 4*25, 5*20 bằng 200 rồi sau đó lấy 112*113=12656

phép tính là: 12656 -200 -25=12631

mình cần gấp

=47,2x4-47,2x2-47,2=47,2

\(=47,2\)

=47,2x4-47,2x2-47,2=47,2

đâu

biểu thức đâu?

:>??

Biểu thức 

= 48875

48 x 125 + 875 x 49 

=\(\text{48 x 49 x ( 125 + 875 ) }\)

= \(\text{48 x 49 x 1000}\)

=\(\text{2352 x 1000}\)

=\(\text{2352000}\)

1282+2005-3546+4218-454+995

=(1282+4218)+(2005+995)-(3456+454)

=5500+3000-4000

=4500

1282+2005-3546+4218-454+995

=(1282+4218)+(2005+995)-(3456+454)

=5500+3000-4000

=4500