$\"\"$

The expression is 29 $\"\"$ 13.

= (30 $\"\"$ 1)13 (Write 29 as the difference of 30 and 1)

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

= 30 $\"\"$ 13 $\"\"$ 1 $\"\"$ 13 (Distribute 13)

= 390 $\"\"$ 13 (Multiply: 30 $\"\"$ 13 = 390 and 1 $\"\"$ 13 = 13)

= 377 (Subtract: 390 $\"\"$ 13 = 403) $\"\"$

The product is $\"\"$ .