Multiplying Two-Digit Numbers
Learning Objective
I can multiply two-digit numbers by two-digit numbers using partial products.
Key Concepts
When multiplying a multi-digit number by another multi-digit number, you multiply each digit of the bottom number by each digit of the top number.
When multiplying multi-digit numbers, you will have multiple answer lines that need to be added together to get the final answer.
When you start a new answer line, you need to add a zero as a placeholder, and the number of zeros depends on the place value of the digit you are multiplying by.
Practice Questions
This lesson includes 8 practice questions to reinforce learning.
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1. What is the first step when multiplying a two-digit number by another two-digit number using partial products?
2. Why do we sometimes need to 'carry' digits during the multiplication process?
3. When multiplying 23 x 12 using partial products, what two smaller multiplication problems do you solve?
...and 5 more questions
Educational Video
Math Antics - Multi-Digit Multiplication Pt 2
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