The inverse operations of multiplicative associative law and multiplicative distributive law can be used for simple operations. The calculation process of disjunction is as follows:

=2× 1 1 1 1 1 1×5× 1 1 1 1 1 1

=2×5× 1 1 1 1 1 1× 1 1 1 1 1 1

= 10× 1 1 1 1 1 1×( 100000+ 10000+ 1000+ 100+ 10+ 1)

= 10×( 1 1 1 1 1 100000+ 1 1 1 1 1 10000+ 1 1 1 1 1 1000 + 1 1 1 1 1 100+ 1 1 1 1 1 / kloc-0/0+ 1 1 1 1 1 1

= 10× 1234565432 1

= 1234565432 10

Extended data:

The law of multiplication in mathematics;

1, multiplication method of substitution: two numbers are multiplied, and the positions of two factors are exchanged, and the product remains unchanged.

Expressed in letters: a× b = b× a.

2. Multiplication and association law: when three numbers are multiplied, the first two numbers are multiplied first, or the last two numbers are multiplied first, and the product remains unchanged.

Expressed in letters: (a×b)×c=a×(b×c).

3. Multiplication and distribution law: the sum of two numbers is multiplied by one number. You can multiply them by this number first and then add them up.

Expressed in letters: (a+b) × c = a× c+b× c.