# Multiplying 2 digit by 1 digit / partial products

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Curipod lesson about topic "Multiplying 2 digit by 1 digit / partial products"

## mburke

Updated 3 months ago

1. Word cloud
120 seconds
What is the first step in multiplying 2 digit by 1 digit?
2. Slide
60 seconds
"MGSE3.MD.7. Relate area to the operations of multiplication and addition. c. Use tiling to show, in a concrete case, that the area of a rectangle with whole-number side lengths a and b + c is the sum of a × b and a × c. Use area models to represent the distributive property in mathematical reasoning. "
Learning objective:
3. Slide
60 seconds
Partial product is a method used to multiply two or more numbers. It involves breaking down the numbers into their individual parts and multiplying them separately. The answer can then be found by combining the separate parts of the products.
Multiplying 2 digit by 1 digit using partial product
4. Slide
60 seconds
Partial Product: A multiplication problem that involves breaking the numbers into their individual parts and multiplying them separately. Two-digit Number: A number containing two digits, such as 23 or 56. One-digit Number: A number containing one digit, such as 5 or 7.
Concepts:
5. Slide
60 seconds
Using partial product can make multiplying large numbers quicker and easier. Partial product is also called 'box multiplication'. Partial product was used by ancient civilizations to multiply large numbers.
Fun facts:
6. Open question
660 seconds
Work together in pairs: Find the area of a rectangle with side lengths of 4 and 5. Use area models to represent the distributive property in your answer.
7. Open question
660 seconds
Work together in pairs: If the length of a rectangle is 10 and the width is 3, what is the area of the rectangle?
8. Drawings
450 seconds
Brain break: Draw a picture of a tree with a house inside
9. Poll
300 seconds
What is the partial product of 23 x 4?
• 72
• 92
• 82
• 93
10. Poll
300 seconds
What is the partial product of 12 x 7?
• 84
• 72
• 94
• 71
11. Poll
300 seconds
What is the partial product of 15 x 8?
• 120
• 130
• 110
• 119
12. Poll
300 seconds
What is the partial product of 18 x 5?
• 90
• 80
• 70
• 100
13. Poll
300 seconds
What is the partial product of 25 x 6?
• 150
• 160
• 140
• 170