$\"\"$

The expression is 31 $\"\"$ 11.

= 31(10 + 1) (Write 11 as the sum of 10 and 1)

Distribute terms using distributive property: a(b + c) = ab + ac.

= 31 $\"\"$ 10 + 31 $\"\"$ 1 (Distribute 31)

= 310 + 31 (Multiply: 31 $\"\"$ 10 = 310 and 31 $\"\"$ 1 = 31)

= 341 (Add: 310 + 31 = 341) $\"\"$

The product is $\"\"$ .