Different looks for Multiplication of Two 2-Digit Numbers 4.4 D

1. Different looks for Multiplication of Two 2-Digit Numbers4.4 D

2. 2 different alternative approaches to using the multiplication algorithm for multiplying two-digit numbers. The factors 29 and 17 have been decomposed, using knowledge of place value. Partial products have been found and organized into a table. This method stresses using place value. For example, when multiplying the two digits in the tens place, the student is not thinking 1 x 2, but rather 10 x 20. Using this algorithm makes 2-digit multiplication accessible for mental math for some students. It can also help students who struggle with understanding the traditional algorithm.The factors 29 and 17 have been decomposed, using knowledge of place value. Partial products have been found and organized into a table. This method stresses using place value. For example, when multiplying the two digits in the tens place, the student is not thinking 1 x 2, but rather 10 x 20. Using this algorithm makes 2-digit multiplication accessible for mental math for some students. It can also help students who struggle with understanding the traditional algorithm.

3. Step 1: Rewrite each number in expanded notation form

4. Step 2: Multiply each number at the top by each number on the side.

5. Step 3: Add each of the numbers to find the product.