Question

Indică ordinea efectuării operațiilor după model și calculează

Answer 1

Nu vad unde este modelul .

46 + 2 × 127 + 105 = 46 + 254 + 105 = 300 + 105 = 405

840 - 3 × 116 + 29 = 840 - 348 + 29 = 492 + 29 = 521

2,700 + 257 × 4 - 3 × 69 = 2,700 + 1,028 - 207 = 3,728 - 207 = 3,521

4,850 - 1,237 × 2 + 169 × 5 = 4,850 - 2,474 + 845 = 2,376 + 845 = 3,221

396 + 207 × 4 × 2 - 110 × 6 = 396 + 828 × 2 - 660 = 396 + 1,656 - 660 = 996

7,905 - 237 × 3 + 18 + 9 × 60 = 7,905 - 681 + 18 + 540 = 7,224 + 18 + 540 = 7,242 + 540 = 7,782.

Answer 2

46+2×127+105=405
2×127=254
46+254+105=405

840-3×116+29=663
116×3=148
840-148+29
148+29=177
840-177=663

2700+257×4-3×69
257×4=1028
3×69=207
2700+1028-207=3728-207=3521

4850-1237×2+169×5
1237×2=2474
169×5=845
4850-2474+845
2474+845=3319
4850-3319=1531

396+207×4×2-110×6
207×4=828
828×2=1656
110×6=660
396+828+1656-660
2880-660=2220

7905-237×3+18+9×60
237×3=711
9×60=540
7905-711+18+540
7905-1269=6636