Multiply Whole Numbers: 2-Digits by 2-Digits

Multiplying multiple digit numbers (85 x 32) often requires regrouping (carrying, trading, or renaming). Regrouping occurs when the product of the numbers in the ones or tens (for larger numbers: hundreds, thousands, etc.) position are equal to or greater than ten.

Tutorial

The following is a step-by-step example of a multiple-digit multiplication problem.

Solve: 85 x 32 = ?



Step 1: Rewrite horizontal problems vertically.

Step 2: Multiply 85 by 2. Write the product (170) below the line.

Step 3: Place a 0 below the product of Step 2 in the ones column.

Step 4: Multiply 85 by 3. Write the product (255) to the left of the 0.

Step 5: Add the two products (170 + 2550) to determine the answer.

The correct answer is 85 x 32 = 2720.