Multiplying with Arrays
Learning Objective
I can solve multiplication problems with 2-digit numbers using arrays.
Lesson Flow
Watch Video
Multiplying two 2-digit numbers using partial products
Khan Academy
Guided Notes
Key concepts students will learn:
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When multiplying 37 × 26, we can break it down into (30 × 6) + (7 × 6) + (30 × 20) + (7 × 20), which equals 180 + 42 + 600 + 140.
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Multiplying 37 × 26 can be thought of as finding the sum of 37 sixes and 37 twenties.
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When multiplying two 2-digit numbers using partial products, it's helpful to stack the numbers by their place value to keep track of the ones, tens, and hundreds.
Practice
3 questions • Multiple choice & Short answer
Exit Ticket
“Solve 14 x 12 using the array method. Break down each number by tens and ones, and show all the smaller multiplication problems you need to solve.”
Teacher Guide
Get the complete package:
- Answer keys for all questions
- Differentiation strategies
- Extension activities
- Printable student handouts
