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![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
3254-126-254-474
= (3254-254)-
= 3000-(474+126)
= 3000-600
= 2400
3254-126-254-474
=3254-254-126-474
=3000-(126+474)
=3000-600=2400
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
254 x 35 + 254 x 24 - 254 x 18 - 254
= 254 x 35 + 254 x 24 - 254 x 18 - 254 x 1
= 254 x ( 35 + 24 - 18 - 1 )
= 254 x 40
= 10160
![](https://rs.olm.vn/images/avt/0.png?1311)
\(254x147-127x92-254\)
\(=254x147-\left(127x2\right)x46-254\)
\(=254x147-254x46-254\)
\(=254x\left(147-46-1\right)\)
\(=254x100=25400\)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(a,856:214+1284:214\\ =\left(856+1284\right):214\\ =2140:214=10\\ b,1778:254+3302:254\\ =\left(1778+3302\right):254\\ =5080:254\\ =20\)
Bài 2:
a) \(856
:
214+1284
:
214=\left(856+1284\right)
:
214=2140
:
214=10\)
b) \(1778
:
254+3302
:
254=\left(1778+3302\right)
:
254=5080
:
254=20\)
![](https://rs.olm.vn/images/avt/0.png?1311)
bang 92862 day ban
(254254: 254 - 566566: 566) + 92862
= ( 1001- 1001) + 92862
= 0+ 92862
= 92862
Nhớ THANK YOU CHO MÌNH NHA!