1.
1) 214*24+15= 5136+15= 5151
428*12+15= 5136+15= 5151
214*24+15= 428*12+15
2) 214*24+37= 5136+37= 5173
428*12+37= 5136+37= 5173
214*24+37= 428*12+37
2.
1) 325+427+85=752+85= 837
529+223+85= 752+85= 837
325+427+85= 529+223+85
2) 325+427+148=752+148= 900
529+223+148= 752+148= 900
325+427+148= 529+223+148