b) 200 x 4 = .800.....              300 x 2 = ..600....

200 x 2 = .400.....             300 x 3 = ...900...

400 x 2 = ...800...             500 x 1 = ..500....

100 x 4 = ..400....             100 x 3 = .300.....

800

400

800

400

600

900

500

300

ai giúp mình với

x+300=100+300

X+300=400

x=400-300

x=100

Vậy x=100

k mk nha!

x + 300 = 100 + 300

x + 300 =     400

x          =  400 - 300

x          =      100

x+300=100+300

x+300=400

       x=400-300

       x=100

chuc bn hoc gioi!

X+100=300+300

X+100=600

      X=600-100

      X=500

K MINH NHE

CHUC BAN HOC GIOI

x  +100 = 300 + 300

x  +100 = 600

x = 600 - 100

x = 400

Lớp 1 chưa học đâu

Tk mk nha

Mk cảm ơn bạn nhiều

Thank you very much 

( ^ _ ^ )

X+100=300+300

X+100=600

   x = 600-100

x =500

k mk mik k lại nha Nguyễn Tiến Dũng 

x+100=-100

x       = -100 - 100

x       = -200

x+300=200

x       = 200-300

x       =-100

k nha!

x+100=-100

x=-100-100-200

x+300=200

x=200-300

x=-100

a)x+100=200-300

x+100=(-100)

x       =(-100)-100

x       =(-200)

b)x+300=200

   x       =200-300

  x          =-100

x + 100 = 200 - 300

x + 100 = - 100

          x = 100 - 100

          x = 0

x - 300 = 400 - 500

x - 300 = -100

        x = -100 + 300

        x = 200

k mik mik k lại

x + 100 = 200 - 300

x + 100 = -100

x = -100 - 100

x = -200

x - 300 = 400 - 500

x - 300 = -100

x = -100 + 300

x = 200 

1 bang-200

2bang200

x + 100 = 300 - 100

x + 100 = 200

x = 200 - 100

x = 100

x + 100 = 300 - 100

x + 100 = 200

x = 200 - 100

x = 100

300-100=200-100=100

kết bạn với mình nha

500 + x = 100 + 500

500 + x = 600

          x = 600 - 500

          x = 1001

300 - x = 300 + 200

300 - x = 500

         x = 300 - 500

         x = -200

400 - x = 200 + 400

400 - x = 600

         x = 400 - 600

         x = -200

k mk nha mk k l

ại ^_^

500 + 100 = 100 + 500

300 + 200 =  300 + 200

400 + 200  = 200 + 400

500+x=100+500

vay x =100

300-x=300+200

vay x= - 200

400-x=200+400

vay x= -200

\(x+100=0\)

\(x=-100\)

x + 100 = 200 - 300 - 300 + 400

x + 100 = -100 - 300 + 400

x + 100 = -400 + 400

x + 100 = 400 - 400

x + 100 = 0

          x = 0 - 100

          x = -100

x+100=200-300-300+400

x+100=0

x=0-100

x=-100

x+700=900-100

x+700=800

x        = 800-700

x         = 100

x+300=400+500

x+300=900

x       = 900-300 

x       = 600

x+100=900+300

x+100= 1200

x        = 1200 - 100

x       = 1100

x+700=900-100

x+700=800

x       =800-700

x       =100

x+300=400+500

x+300=900

x       =900-300

x       =600

x+100=900+300

x+100=1200

x      =1200-100

x      =1100

x + 700 = 900 - 100

x + 700 = 800

x = 800 - 700

x = 100

x + 300 = 400 + 500

x + 300 = 900

x = 900 - 300

x = 600

x + 100 = 900 + 300

x + 100 = 1200

x = 1200 - 100

x = 1100

băng 0 , 100 , 200 ,hoặc 300

B​an ghi ro cach lm ra di

mệt lw k mún ghi