986 * 134 = 132124
$\snippet{name: column_multiplication, x: 986, y: 134}$
 
701 * 235 = 164735
$\snippet{name: column_multiplication, x: 701, y: 235}$
 
809 * 350 = 283150

 
406 * 502 = 203812

 
34 * (120 − 3920 : 70) = 34 * (120 − 56) = 34 * 64 = 2176
1) $\snippet{name: long_division, x: 3920, y: 70}$;
2) 120 − 56 = 64;
3) $\snippet{name: column_multiplication, x: 34, y: 64}$.
 
(110 − 3420 : 90) * 25 = (110 − 38) * 25 = 72 * 25 = 1800
1) $\snippet{name: long_division, x: 3420, y: 90}$;
2) 110 − 38 = 72;
3) $\snippet{name: column_multiplication, x: 72, y: 25}$.