$0 \overset{4}{:} (675 \overset{1}{-} 324) \overset{7}{+} (18 \overset{2}{:} 1 \overset{3}{-} 15) \overset{5}{*} 1 \overset{8}{-} 1 \overset{6}{*} 0 = 0 : 351 + (18 - 15) * 1 - 0 = 0 + 3 * 1 - 0 = 3$
1) 675 − 324 = 351
$\snippet{name: op_column, sign: '-', x: '675', y: '324', z: '351'}$;
2) 18 : 1 = 18;
3) 18 − 15 = 3;
4) 0 : 351 = 0;
5) 3 * 1 = 3;
6) 1 * 0 = 0;
7) 0 + 3 = 3;
8) 3 − 0 = 3.
 
$28 \overset{3}{:} (32 \overset{1}{:} 16) \overset{4}{*} 10 \overset{7}{-} 20 \overset{5}{*} 7 \overset{8}{+} (7 \overset{2}{*} 9) \overset{6}{:} 63 = 28 : 2 * 10 - 140 + 63 : 63 = 14 * 10 - 140 + 1 = 140 - 140 + 1 = 0 + 1 = 1$
1) 32 : 16 = 2, так как 2 * 16 = (10 + 6) * 2 = 10 * 2 + 6 * 2 = 20 + 12 = 32;
2) 7 * 9 = 63;
3) 28 : 2 = (20 + 8) : 2 = 20 : 2 + 8 : 2 = 10 + 4 = 14;
4) 14 * 10 = 140;
5) 20 * 7 = 7 * 2 * 10 = 14 * 0 = 140;
6) 63 : 63 = 1;
7) 140 − 140 = 0;
8) 0 + 1 = 1.