Question

[144-97]-144

[-145]-[18-145]

111+[-11+27]

bo ngoac roi tinh cac ban nha

 

Answer 1

[144 - 97] - 144

= 144 - 97 - 144

= 0 - 97

= -97

[-145] - [18 - 145]

= 145 - 18 + 145

= 0 - 18

= -18

111 + [-11 + 27]

= 111 - 11 + 27

= 100 + 27

= 127

Answer 2

(144-97)-144=144-97-144= -97

(-145)-(18-145)=(-145)-18+145=-18

111+(-11+27)=111-11+27=127