Question

Calculeaza respectand ordinea efectuarii operatiilor.
800-721:7-69×8=
230+424:4×5=
(800-721):3+93×6=
302×4-(421+118):7
Va rog ajuratima repede

Answer 1

800-721:7-69x8=
800-103-552=145

230+424:4×5=
230+106×5=
230+530=760

(800-721):3+93×6=
79:3+558=
26,3+558=
584,3

302×4-(421+118):7=
1208-539:7=
1208-77=1131

Answer 2

800-721:7-69x8=
800-103-552=145
..................................
230+424:4x5=
230+106x5=
230+530=760.
...............................
(800-721):3+93x6=
79:3+558=
26.3333+558584,333
.........................
302x4-(421+118):7=
1208-539:7=
1208-77=1131