x+ 100 = 200 + 400
500 + x = 100 + 500
300 - x = 300 + 200
400 - x = 200 + 400
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
tính nhanh :
100 x 200 + 200 x 500 + 200 x 400
100x200+200x500+200x400
=20000+100000+80000
=120000+80000
=200000
100 x 200 + 200 x 500 + 200 x 400
= 200 x ( 100 + 500 + 400 )
= 200 x 1000
= 200000
100x200+200x500+200x400
=20000+100000+80000
=120000+80000
=200000
100 x 3 + 400 . . . 100 +200 + 100 x 4
100 x 3 + 400 ... 100 + 200 + 100 x 4
= 100 x 3 + 400 = 700
= 100 + 200 + 100 x 4 = 700
=> 100 x 3 + 400 = 100 + 200 + 100 x 4
x+100=200-400+100
x + 100 = 200 - 400 + 100
x + 100 = -100
x = -100 - 100
x = -200
x+100=200-400+100
x+100=-200+100
x+100=-100
x=-100-100
x=-200
\(x+100=200-400+100\)
\(x+100=-200+100\)
\(x+100=-100\)
\(x=-100-100\)
\(x=-200\)
b) 200 x 4 = ...... 300 x 2 = ......
200 x 2 = ...... 300 x 3 = ......
400 x 2 = ...... 500 x 1 = ......
100 x 4 = ...... 100 x 3 = ......
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.....
100 +400 + 100 + 200 + 50 + 100 x 0 = ?
100 + 400 + 100 + 200 + 50 + 100 x 0 = ?
Giải:
100 + 400 + 100 + 200 + 50 + 100 x 0
= 100 + 400 + 100 + 200 + 50 + (100 x 0)
= 100 + 400 + 100 + 200 + 50 + 0
= 500 + 300 + 50
= 800 + 50
= 850
Chúc bạn học tốt !
trả lời :
100 +400 + 100 + 200 + 50 + 100 x 0
= 0
@.@
100 + 400 + 100 + 200 + 50 + 100 x 0 = ?
trả lời :
0
^_^
x-100=200+900
x+100=300-400
x - 100 = 200 + 900
x - 100 = 1100
x = 1100 + 100
x = 1200
x + 100 = 300 - 400
x + 100 = - 100
x = - 100 - 100
x = - 200
x+100=200+900
x+100=1000
x=1000-100
x=900
x+100=300-400
x+100=-100
x=-100-100
x=-200
X-100=200+900
X-100=1100
X =1100+100
X =1200
x + 100 = 400 - 200
\(x+100=400-200\)
\(x+100=200\)
\(x=200-100\)
\(x=100\)
x + 200 = 400 + 100
x+200=400+100
x+200=500
x=500-200
x=300
x + 200 = 400 + 100
x + 200 = 500
x = 500 - 200
x = 300
trao đổi k với mik nhé !!!
ai mún mik k thì nhắn tin nhé ^_^
\(x+200=400+100\)
\(x+200=500\)
\(x=500-200\)
\(x=300\)
x + 100 = 200 + 400
x+100=200+400
x+100=600
x =600-100
x =500.
Tk mk nhé!
x + 100 = 200 + 400
x + 100 = 600
x = 600 - 100
x = 500 ai k mk,mk k lai