Exploring Multiplication with Multiples of 10

The video tutorial teaches how to multiply single-digit numbers by multiples of 10 using a pattern-based strategy. It begins with basic multiplication by 10, showing that appending a zero to the number being multiplied is a consistent pattern. The tutorial then extends this concept to multiples of 10, such as 20, 30, etc., by demonstrating that the same pattern applies. The video includes examples and exercises to reinforce the strategy, helping students understand and apply it effectively.

What does the unit block represent in phase 10 blocks?

• 10

• 1

• 100

• 0

What is the result of 2 times 10?

• 10

• 20

• 30

• 40

What pattern is observed when multiplying a number by 10?

• Divide by 10

• Multiply by 2

• Subtract 10

• Add a zero at the end

What are the multiples of 10?

• 5, 10, 15, 20

• 100, 200, 300, 400

• 10, 20, 30, 40

• 1, 2, 3, 4

What is 3 times 20?

• 60

• 30

• 40

• 50

What is the result of 4 times 30?

• 90

• 100

• 120

• 110

What mental math strategy can be used when multiplying by multiples of 10?

• Multiply the first digit and add a zero

• Subtract 10

• Add 10

• Divide by 10

What is 5 times 40?

• 100

• 250

• 200

• 150

What is 3 times 30?

• 60

• 70

• 80

• 90

What did Miss Curly ask her class to multiply in the second part of the problem?

• 5 by 4 tens

• 4 by 5 tens

• 2 by 2 tens

• 3 by 3 tens