bạn đặt thừa số chung là 4.32 ra nè, còn những cái kia cho vào trong ngoặc rồi tính á

ai nhanh thì mik k cho

C1:

`5/8 xx (1/5 +2)`

`=5/8 xx (1/5 +10/5)`

`=5/8 xx 11/5`

`=11/8`

C2:

`5/8 xx (1/5 +2)`

`=5/8 xx 1/5 + 5/8 xx 2`

`=1/8 + 10/8`

`=11/8`

thank you

= 356 . (445 - 245 )

= 356 . 200

= 71200

356(445-245)
= 356. 200
=71200

 

\(\dfrac{45.21.25}{7.15.36}=\dfrac{3.3.3.5.7.5.5}{7.5.3.3.2.3.2}=\dfrac{25}{4}\)

45\7 x 21\15 x 25/36

=45x21x25/7x15x36

=15x3x7x3x25/7x15x3x12

=3x25/12

=75/12

=25/4

(98×7676-9898×76):(2001×2002×2003)

=(98×76×101-98×101×76):(2001×2002×2003)

=0:(2001×2002×2003)

=0

Tu so be nhat = 0. Tu so lon nhat = 2009

Co so phan so la: ( 2009 - 0 ) : 1 + 1 = 2010 ( phan so )

                                                     D/s : 2010 phan so

2010 p/số 

\(2367\times4\times25\\ =2367\times\left(4\times25\right)\\ =2367\times100\\ =236700\)

2367 x 4 x 25

= 2367 x 100=236700

$67\cdot12+67\cdot89-67$

$=67\cdot(12+89-1)$

$=67\cdot(101-1)$

$=67\cdot100$

$=6700$

152+ (−73)− (−18)− 127.

= 152 − 73 + 18 − 127.

= (152 + 18) - (73 + 127).

= 170 - 200 = -30. 

= [152 - (-18)] - [127 - (-73)]                                    

= (152 + 18) – (127 + 73)                                     

= 170 - 200             

= - 30