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A = 2014 x (128 x 68 - 64 x 136) + 2015
A=2014x(8704-8704)+2015
A=2014x0+2015
A=0+2015
A=2015
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
A = 2014 x (128 x 68 - 64 x 136) + 2015
A = 2014 x 0 + 2015
A = 0 + 2015
A = 2015
![](https://rs.olm.vn/images/avt/0.png?1311)
2014 x (128 x 68 - 64 x 136) + 2015
2014 x (8704 - 8704) + 2015
2014 x 0 + 2015
0 + 2015
= 2015
A = 2015
![](https://rs.olm.vn/images/avt/0.png?1311)
9900 : 36 - 15 x 11
= 275 - 165
= 110
9700 : 100 + 36 x 12
= 97 + 432
= 529
( 15792 : 336 ) x 5 + 27 x 11
= 47 x 5 + 297
= 235 + 297
= 532
( 160 x 5 - 25 x 4 ) : 4
= ( 800 - 100 ) : 4
= 700 : 4
= 175
1036 + 64 x 52 - 1827
= 1036 + 3328 - 1827
= 4364 - 1827
= 2537
215 . 869 + 215 . 14
= 215 . ( 869 + 14 )
= 215 . 883
= 189945
![](https://rs.olm.vn/images/avt/0.png?1311)
=68x2x5+68x3-68x10-3x68
=68x10-68x10+68x3-68x3
=68x(10-10)+68x(3-3)
=0+0
=0
![](https://rs.olm.vn/images/avt/0.png?1311)
Giải thích các bước giải:
+ ) 136 x 68 + 16 x 272
= 136 x 68 + 16 x 2 x 136
= 136 x 68 + 32 x 136
= 136 x ( 68 + 32 )
= 136 x 100
= 13600
+ ) 460 : ( 5 x 23 )
= 46 x 10 : ( 5 x 23 )
= 23 x 2 x 10 : ( 5 x 23 )
= 23 x 20 : ( 5 x 23 )
A = 2014 x ( 128 x 68 - 64 x 136 ) + 2015
= 2014 x ( 128 x 68 - 64 x 2 x 136 : 2 ) + 2015
= 2014 x ( 128 x 68 - 128 x 68 ) + 2015
= 2014 x 0 + 2015
= 0 + 2015 = 2015
Đáp án là 2015