$(416 \overset{1}{-} 349) \overset{3}{*} (90 \overset{2}{:} 18) \overset{4}{-} 318 = 67 * 5 - 318 = 335 - 318 = 17$
1) $\snippet{name: op_column, sign: '-', x: '416', y: '349', z: '67'}$;
2) 90 : 18 = 5;
3) 67 * 5 = (60 + 7) * 5 = 60 * 5 + 7 * 5 = 300 + 35 = 335;
4) $\snippet{name: op_column, sign: '-', x: '335', y: '318', z: '17'}$.
 
$800 \overset{3}{:} (17 \overset{1}{+} 3) \overset{4}{*} 9 \overset{6}{-} 4 \overset{5}{*} (135 \overset{2}{-} 86) = 800 : 20 * 9 - 4 * 49 = 40 * 9 - 196 = 360 - 196 = 164$
1) 17 + 3 = 20;
2) $\snippet{name: op_column, sign: '-', x: '135', y: '86', z: '49'}$;
3) 800 : 20 = 80 : 2 = 40;
4) 40 * 9 = 4 * 9 * 10 = 36 * 10 = 360;
5) 4 * 49 = (40 + 9) * 4 = 40 * 4 + 9 * 4 = 160 + 36 = 196;
6) $\snippet{name: op_column, sign: '-', x: '360', y: '196', z: '164'}$.