Trả lời:

1000 . 0,04 - 100 / 2,5 + 10 . 0,4

= 40 - 40 + 4

= 4

Hok tốt!

Vuong Dong Yet

Trả lời:

\(1000.0,04-\frac{100}{2,5}+10.0,4\)

\(=40-40+4\)

\(=4\)

Hok tốt!

Bad boy

tinh bang cach thuan tien nhat 

7.5 *2,5*0.04=

100x(10+10)

100x100=10000

100x(10+10)

=100x20

=2000

\(100\times\left(10+10\right)\)

\(\Rightarrow100\times20\)

\(\Rightarrow2000\)

tính bằng cách thuận tiện nhất :

100 x 55 + 100 x 45 x 10

= 100 x 55 + 100 x 45 x 10

= 100 x 55 + 100 x 450

= 100 x ( 55 + 450 )

= 100 x 500

= 50000

100x55+100x45x100

=100x(55+45)x10

=100x100x10

=1000x10

=10000

       Các bn k mik nha

100*55+100*45*10

=(100*55)+(100*45)*10

=(5500+4500)*10

=10000*10

=100000

   11,5 x 0,01 + 55,2 : 100 + 1/100 x 33,3

=     0,115      +    0,552     +    0,333

=                             1

mong bạn tick cho mik

11,5 x 0,01 + 55,2 : 100 + 1/100 x 33,3

=11,5 x 0,01 + 55,2 x 0,01 + 0,01 x 33,3

=0,01 x ( 11,5 + 55,2 + 33,3 )

= 0,01 x 100

= 1

10 x 45 - 25 x 10

= 10 x ( 45 - 25 )

= 10 x 20

= 200

100 x 2 + 100 x 3 

= 100 x ( 2 + 3 )

= 100 x 5

= 500

10 x 45 - 25 x 10 

= 10 x [45 - 25]

= 10 x 20

= 200

100 x 2  + 100 x 3

= 100 x [2 + 3]

= 100 x 5

= 500

\(10.45-25.10=10\left(45-25\right)=10.20=200\)

\(100.2+100.3=100.\left(2+3\right)=100.5=500\)

12 43 x 100,11 - 12,43 : 100 - 12,43 : 10  

12.43 x ( 100.11 : 100 : 10 )

12.43 x 0.10011

1.2443673

12,43 x 100,11 - 12,43 : 100 - 12,43 : 10

= 12,43 x 100,11 - 12,43 x 0,01 - 12,43 x 0,1

= 12,43 x (100,11 - 0,01 - 0,1) 

= 12,43 x 100

= 1243

\(=2003\times\left(58+52-10\right)+335\times100\)

\(=100\times\left(2003+335\right)=233800\)

(2003 x 58 + 52 x 2003 - 10 x 2003) + (670-335) x 100

= 2003 x ( 58 + 52 - 10 ) + 335 x 100

= 2003 x 100 + 335 x 100

= ( 2003 + 335 ) x 100

= 2338 x 100

233 800

b: =(4,5+5,4)x0,01

=9,9x0,01

=0,099