3000 + (4800 + 1200) : 3
1000 − 900 : 2 + 1600
95275 + 2937 * 5 + 374698
700010 + 190192 : 4 − 8645

3000 + (4800 + 1200) : 3 = 3000 + 6000 : 3 = 3000 + 2000 = 5000
1000 − 900 : 2 + 1600 = 1000 − 450 + 1600 = 550 + 1600 = 2150
95275 + 2937 * 5 + 374698 = 95275 + 14685 + 374698 = 484658
$\snippet{name: column_multiplication, x: 2937, y: 5}$
$\snippet{name: op_column_rows, args: ['95275', '+14685', '374698'], solution: '484658'}$
700010 + 190192 : 4 − 8645 = 700010 + 47548 − 8645 = 747558 − 8645 = 738913
$\snippet{name: long_division, x: 190192, y: 4}$
$\snippet{name: op_column, sign: '+', x: '700010', y: '47548', z: '747558'}$
$\snippet{name: op_column, sign: '+', x: '747558', y: '8645', z: '738913'}$