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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
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
100 x 3 + 100 x 6 + 100
=100 x(3+6+1)
=100 x 10
=1000
![](https://rs.olm.vn/images/avt/0.png?1311)
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
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Bài 1 :
a) = 98765
b) = 300657
c) 610000
Bài 2:
a) X + 77 = 1800
X = 1800 - 77
X = 1723
b) 8950 : x = 5
x = 8950 : 5
x = 1790
c) x = 8765 : 5
x = 1753
a,98765 b,300657 c,610000 Bài 2 : a, 17923 b, 1790 c, 1753
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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
![](https://rs.olm.vn/images/avt/0.png?1311)
\(3\times x+x+x\times6=100\)
\(x\times\left(3+1+6\right)=100\)
\(x\times10=100\)
\(x=100:10\)
\(x=10\)
3 x x + x + x x 6 = 100
3 x x + x x 1 + x x 6 = 100
x x ( 3 + 1 + 6 ) = 100
x x 10 = 100
x = 100 : 10
x = 10
Vậy x= 10
K mk nha
![](https://rs.olm.vn/images/avt/0.png?1311)
3 X x + x + x X 6 = 100
( 3 x 6 ) + x = 100
18 + x = 100
x = 100 - 18
x = 82
3 x x + x + x x 6 = 100
3 x x + x x 1 + x x 6 = 100
x x ( 3 + 1 + 6 ) = 100
x x 10 = 100
x = 100 : 10
x = 10
Vậy x= 10
K mk nha , năn nỉ đó
![](https://rs.olm.vn/images/avt/0.png?1311)
x + 100 = 30 x 3
x + 100 = 90
x = 100 - 90
x = 10
tk mk mk tk lại
![](https://rs.olm.vn/images/avt/0.png?1311)
Tích bằng :
100 x 3 = 300
Đáp số : 300
100 x 3 = 300
tk em nha em tk lại chị