487 * 8 + 45270 : 3 : 10;
560 : 7 + (3820 − 850).
487 * 8 + 45270 : 3 : 10 = 3896 + 15090 : 10 = 3896 + 1509 = 5405
1) $\snippet{name: column_multiplication, x: 487, y: 8}$;
2) $\snippet{name: long_division, x: 45270, y: 3}$;
3) 15090 : 10 = 1509;
4) $\snippet{name: op_column, sign: '+', x: '3896', y: '1509', z: '5405'}$.
560 : 7 + (3820 − 850) = 80 + (3820 − 850) = 80 + 2970 = 3050
1) $\snippet{name: op_column, sign: '-', x: '3820', y: '850', z: '2970'}$;
2) 560 : 7 = 80;
3) 80 + 2970 = 3050.
