Câu này dễ mà 

\(=35.12-15.28+\frac{23}{49}-\frac{23}{49}+2010\)

\(=\left(420-420\right)+\left(\frac{23}{49}-\frac{23}{49}\right)+2010\)

\(=0+0+2010\)

\(=2010\)

  35 x 12 - 15 x 28 + \(\frac{2323}{4949}-\frac{23}{49}\)+ 2010 

=  (420 - 420 )+ \(\left(\frac{23}{49}-\frac{23}{49}\right)\)+ 2010

= 0 + 0 + 2010 = 2010 .

35 x 12 -15 x28+2323/4949-23/49+2010

=35x12-15x28+23/49-23/49+2010

=420-420+0+2010

=0+0+2010

=2010

35.12-15.28+ 23.101/49.101-23/49+2010=

=7.5.4.3 - 3.4.4.7+23/49-23/49+2010=

=2010

35 x 12 - 15 x 28 + \(\frac{23}{49}\)- \(\frac{23}{49}\)+ 2017

= 35 x 12 - 15 x 28 + 0 + 2017

= 35 x 12 - 15 x 28 + 2017

= 420 - 420 + 2017

= 0 + 2017

= 2017

ra 2017 pn nha

mik làm xong kết bn với mik nhé

thì cứ làm đi

vioedu

= 49 + 54 - 23

= 103 - 23

= 80

nếu đúng tk mình nhé

=49+54-23

=80

~~~HT~~~

xin lũi bn câu kia

 49 - (-54) - 23

= 49 + 54 - 23

= 103 - 23

= 80

Lời giải:
$22+23-25+27-29+31-33$

$=22+(23-25)+(27-29)+(31-33)$

$=22+(-2)+(-2)+(-2)=22+(-2).3=22-6=16$