(18216 + 20012) * 3 = 38228 * 3 = 114684
1) $\snippet{name: op_column, sign: '+', x: '18216', y: '20012', z: '38228'}$;
2) $\snippet{name: column_multiplication, x: 38228, y: 3}$.
 
(42700 − 6512) * 7 = 36188 * 7 = 253316
1) $\snippet{name: op_column, sign: '-', x: '42700', y: '6512', z: '36188'}$;
2) $\snippet{name: column_multiplication, x: 36188, y: 7}$.
 
(10000 − 5915) * 2 = 4085 * 2 = 8170
1) $\snippet{name: op_column, sign: '-', x: '10000', y: '5915', z: '4085'}$;
2) $\snippet{name: column_multiplication, x: 4085, y: 2}$.
 
(20025 + 19105) * 5 = 39130 * 5 = 195650
1) $\snippet{name: op_column, sign: '+', x: '20025', y: '19105', z: '5'}$;
2) $\snippet{name: column_multiplication, x: 39130, y: 5}$.