Răspuns :
2)
[tex]253 + 121 - 323 = 374 - 323 = 51[/tex]
3)
[tex]9(5 + 3) {}^{2} - 144 = 9 \times 8 {}^{2} - 144 = 9 \times 64 - 144 = 576 - 144 = 432[/tex]
2) Explicatie,pas cu pas
le rezolvi in ordine
253+121-323=
=384-323
=61
3) Explicatie,pas cu pas
9•(5+3)²-144=
=9• 8²-144
= 9•64-144
= 576-144
= 432
Go on Printerest:@anamariadudau2750