Multiplying by Multiples of 10
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Objective
I can multiply multi-digit whole numbers by multiples of 10 using strategies based on place value.
Part 1 of 4
Warm-up video
Khan Academy · 3:05Vetted channel
We don't generate video — this one is by Khan Academy on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.
Part 2 of 4
Key concepts
3 concepts
- 1
One way to solve 3 × 60 is to think of it as 60 + 60 + 60, which equals 180.
- 2
Another way to solve 3 × 60 is to think of it as 3 × 6 × 10. First, multiply 3 × 6 to get 18, then multiply 18 × 10 to get 180.
- 3
To solve 50 × 7, you can multiply 5 × 7 = 35, then multiply by 10 by adding a 0 to get 350.
Part 3 of 4
Practice
11 questions
What is the value of 4 × 80?
Rewrite 9 × 70 as a product of three numbers, where one of the numbers is 10.
Part 4 of 4
Exit ticket
Quick comprehension check
“What is 8 x 40? Show your work by breaking down 40 into 4 x 10 and using the associative property.”
Sample answer included in the free materials
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