699-123=576

k mình nha mọi người

699 - 123 = 576 nha 

  kb vs mk nhé 

699-123=576

\(x\)\(=111\)

x + 12 - 45 = 78

x + 12       = 78 + 45

x + 12       = 123

x               = 123 - 12

x               = 111

Vậy x = 111

x+12-45=78

x+12     =78+45

x+12    = 123

x         =123-12

x        111

437,431

437.431

=50000

\(25.5.20.4+5.8.25.40\)

\(=\left(25.4\right).\left(5.20\right)+\left(5.40\right).\left(8.25\right)\)

\(=100.100+200.200\)

\(=10000+40000\)

\(=50000\)

k mk nha 

 =25.5.20.4 + 25.5.20.4.4

 =25.5.20.4.5

 =100.100.5

 =50000

kq cua mk la 25

Bằng 25

C1. 5x2+5x3

=  10+15

=  25

C2. 5x2+5x3

=  5x(2+3)

=  5x5

=25

 ai k mik, mk k lai*********  nha*************

\(=45\)

45 NHA BẠN

1 + 1000000000000000000000000000 =1000....00001

1000000000000000000000001

1+1000000000000000000000000=1000000000000000000000001

1+10=11

1+10=11

k mk nha

1 + 10 = 11

190 - 35 = 155 

Ai k mk , mk k lai

190 - 35 = 155

tk nha

190 - 35

= 155

Tk

            Cho

Mk

       Nhá

Chúc bn hk giỏi

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...................^^