# Model 2-Digit by 1-Digit Multiplication

You can use arrays to find the product of 1-digit number and a 2-digit number.

Find the product 7 × 15.

**STEP 1:** Draw 7 by 15 array

**STEP 2:** Draw a line after the tenth column to make two rectangles

**STEP 3:** Find the product of the two smaller arrays.

**STEP 4:** The sum of the products.

So, 7 × 15 = 105.

Find out more about modeling 2-digit by 1-digit multiplication by reading the explanation below.