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.

Model 2 – Digit by 1 – Digit Multiplication