x = 344 + 125

x = 469

b) x + 125 = 266

x = 266 - 125

x = 141

a) 125.3+125.125.6

=125.3+125.750

=125.(3+750)

=125.753

=94125

b) (245.99+245)-(145.101-145)

=(245.(99+1))-(145.(101-1))

=245.100-145.100

=(245-145).100

=100.100

=10000

c) 154.(28+52)-45.(26+54)

=154.80-45.80

=(154-45).80

=109.80

=8720

a) 125x3+125+125x6

=125x(3+1+6)

=125x10

=1250

b) (245x99+245)-(145x101-145)

=(245x99+245)-(145x100)

=(245x100)-14500

=24500-14500

10000

c) 154x80-45x80

=80x(145-45)

=80x100

=8000

x +125 = 1000

     x    = 1000 - 125

     x    = 875

x + 125 = 125 x 8

x + 125 = 1000

x           = 1000 - 125

x           = 875

uk mik có 4 ních bạn tick mik nha mik gửi tin nhắn cho

a) x + 125 = 999

    x              = 999 - 125 

x                  = 874

b) x- 125 = 999

x               = 999 + 125

x                = 1124

a) 16635

b)7x=49 x=7

c)125(y+z)=125

y+z=1

cậu cho tớ cách giải đi

Ta có

125 + 256 + 98 = 479 nha 

56 + 579 + 8 = 643 nhá 

12 8 25 * 365/5 = 21900 nhà 

T ik nha ban 

Chuc ban hoc tot nhả !!!

125 + 256 + 98 = 479

56 + 579 + 8 = 643

12* 25* 365/5 = 21900

K CHO MÌNH NHA # ! #

a)=210

b)=8100

c)=3900

d)=49000

e)=100000

a ) 2 x 3 x 5 x 7

= ( 2 x 5 ) x 3 x 7

= 10 x 21

= 210

b ) 50 x 9 x 9 x 2

= ( 50 x 2 ) x 9 x 9

= 100 x 81

= 8100

c ) 13 x 25 x 3 x 4

= ( 25 x 4 ) x 13 x 3

= 100 x 39

= 3900

d ) 7 x 125 x 7 x 8

= ( 125 x 8 ) x 7 x 7

= 1000 x 49

= 49000

e ) 25 x 32 x 125

= 800 x 125

= 100000