635 − 432 : 4 = 527 − верно
Проверка:
635 − 432 : 4 = 635 − 108 = 527
$\snippet{name: long_division, x: 432, y: 4}$
 
$\snippet{name: op_column, sign: '-', x: 635, y: 108, z: 527}$
 
753 : 3 + 25 = 276
Проверка:
753 : 3 + 25 = 251 + 25 = 276
$\snippet{name: long_division, x: 753, y: 3}$
 
$\snippet{name: op_column, sign: '+', x: 251, y: 25, z: 276}$
 
34 * 5 + 35 = 215 − неверно
Проверка:
34 * 5 + 35 = 170 + 35 = 205
$\snippet{name: column_multiplication, x: 34, y: 5}$
 
$\snippet{name: op_column, sign: '+', x: 170, y: 35, z: 205}$
 
56 * 7 + 8 = 400 − верно
Проверка:
56 * 7 + 8 = 392 + 8 = 400
$\snippet{name: column_multiplication, x: 56, y: 7}$
 
812 : 4 + 797 = 820 − неверно
Проверка:
812 : 4 + 797 = 203 + 797 = 1000
$\snippet{name: long_division, x: 812, y: 4}$
 
$\snippet{name: op_column, sign: '+', x: 203, y: 797, z: 1000}$
 
419 * 2 − 28 = 800 − неверно
Проверка:
419 * 2 − 28 = 838 − 28 = 810
$\snippet{name: column_multiplication, x: 419, y: 2}$