( 1 345 + 25 ) : 2 * 5 * 2 - 2 283 * 3= 1
1 345 + 25 = 1 370
1 370 : 2 = 685
685 * 5 = 3 425
3425 * 2 = 6850
2 283 * 3 = 6 849
6 850 - 6 849 = 1
( 1 345 + 25 ) : 2 * 5 * 2 - 2 283 * 3= 1
1 345 + 25 = 1 370
1 370 : 2 = 685
685 * 5 = 3 425
3425 * 2 = 6850
2 283 * 3 = 6 849
6 850 - 6 849 = 1