Ta có: 42 937 + 24 539 = 67 476

Chọn C

67 + 466 = 533

67+466= 533

= 533 bạn nhé

123 + 234 + 357 + 466

=1180

\(123+234+357+466=1180\)nhé bạn

=1180 nha

225 - 466 - 179 + 640

= ( -221 ) - 179 + 640

= ( -400 ) + 640

= 240

240

chúc bn hok tor

225-466-170+640

=229

hok tốt !

225 - 466 - 170 + 640 =229

225 - 466 - 170 + 640 = 229

255 - 466 - 170 + 640

= - 611 - 170 + 640

= - 781 + 640

= - ( 781 - 640 )

= - 141.

                                           563 + 234 + 377 + 466

                                       = (563 + 377) + (234 + 466)

                                       = 940 + 700

                                       = 1640

                                      Tính thử lại đi sai rùi đó

\(563+234+377+466\)

\(\Rightarrow\left(563+377\right)+\left(234+466\right)\)

\(\Rightarrow940+700\)

\(\Rightarrow1640\)

\(HT\)

ta có 494:26*3=57 nhé

3/26 của 494:

3/26.494=57

k mik nha :))

494*3/26=57

403 494 – 16 415) : 7 = 387 079 : 7 = 55 297

= 403 494 : 7 – 16 414 : 7

= 57 642 - 2345 = 55 297

x=\(\frac{55}{7}\)

x=55/7

432 + 7( x - 3 ) = 466

<=> 7 ( x - 3 ) = 466 - 432

<=> 7 ( x - 3 ) = 34

<=> x - 3 = 34/7

<=> x = 34/7 + 3

<=> x = 55/7