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= 113x4x25 - 112x5x5x4
= 113x100-112x25x4
= 113x100-112x100
= 100x(113-112)
= 100x1
= 100
4 x 113 x 25 - 5 x 112 x 20
=(4*25)*113-(5*20)*112
=100*113-100*112
=100*(113-112)
=100*1
=100.Vậy biểu thức trên có giá trị là 100
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= (4 x 25) x 113 - (5 x 20) x 112
= 100 x 113 - 100 x 112
= 100 x (113 - 112)
= 100 x 1
= 100
4×113×25-5×112×20
=(4×25)×113-(5×20)×112)
=100×113-100×112
=100×(113-112)
=100×1
=100
![](https://rs.olm.vn/images/avt/0.png?1311)
k) 4 x 113 x 25 - 5 x 112 x 20
= (4 x 25) x 113 - (5 x 20) x 112
= 100 x 113 - 100 x 112
= 100 x (113 - 112)
= 100
p) 1235 x 6789 x (630 - 315 x 2) : 1996
= 1235 x 6789 x (630 - 630) : 1996
= 1235 x 6789 x 0 : 1996
= 0
l) 54 x 113 + 45 x 113 + 113
= 113 (54 + 45 + 1)
= 113 x 100
= 11300
u) (500 x 9 - 250 x 18) x (1 + 2 + 3 + ... + 9)
= (2 x 250 x 9 - 250 x 2 x 9) x (1 +2 + 3 + ... + 9)
= 0 x (1 + 2 + 3 + ... + 9)
= 0
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5 x 217 x 20 - 4 x 215 x 25
= 1085 x 20 - 4 x 215 x 25
= 21700 - 4 x 215 x 25
= 21700 - 860 x 25
= 21700 - 21500
= 200
\(5.217.20-4.215.25\)
\(=\left(5.20\right).217-\left(4.25\right).215\)
\(=100.217-100.215\)
\(=100.\left(217-215\right)\)
\(=100.2=200\)
Nhớ k cho mình nhé! thank you!!!
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5 x 217 x 20 - 4 x 215 x 25
= ( 5 x 20 ) x 217 - ( 4 x 25 ) x 215
= 100 x 217 - 100 x 215
= 100 x ( 217 - 215 )
= 100 x 2
= 200
5 x 217 x 20-4 x 215 x 25
=(5 x 20) x 217-(4 x 25) x 215
=100 x 217-100 x 215
=100 x (217-215)
=100 x 2
=200
![](https://rs.olm.vn/images/avt/0.png?1311)
a, 4*113*25-5*112*20=(4*25)*113-(5*20)*112=100*113-100*112=100*(113-112)=100
b, 2+4+...........+98+100-(1+3+...........+99)=[(100-2)/2+1*102]-[(99-1)/2+1*100]
=98/2+1*102-98/2+1*100=(98/2+1)*(102-100)=(49+1)*2=50*2=100
4x113x25-5x112x20
= ( 4x25 )x113-(5x20)x112
=100x113-100x112
=100x(113-112)
=100x1
=100
![](https://rs.olm.vn/images/avt/0.png?1311)
\(25.5.4.125.20.8\)
\(=\left(25.4\right).\left(5.20\right).\left(125.8\right)\)
\(=100.100.1000\)
\(=10000000\)
4x113x25-5x112x20
=100x113-100x112
=100x(113-112)
=100x1
=100
k tôi nhá bn
4 x 113 x 25 - 5 x112 x 20
=113x4x25-112x5x20
=113x100-112x100
=1x100=100