23+[1234+2221]-213
=23+3455-213
=3478-213
=3265
23 + [ 1234 + 2221 ] - 213
= 23 + 3455 - 213
= 3478 - 213
= 3265
23 + (1234 + 2221) - 213
= 23 + 3455 - 213
= 3478 - 213
= 3265.
\(23+\left[1234+2221\right]-213\)
\(=23+3455-213\)
\(=3478-213\)
\(=3265\)
K mình nha mấy bạn!
23 + ( 1234 + 2221 ) - 213
= 23 + 3455 - 213
= 3478 - 213
= 3265