1. 5-6: Multiplying by multiples of 10
Today we will learn…
How to use basic multiplication facts and number patterns to multiply by multiples of 10.
5-6: Multiplying by multiples of 10
Vocabulary
Factor
Product
Multiple

2. 3 X 5 = 15 Vocabulary Review factors product
Multiplication is an operation that gives the total number when you join equal groups.
3 X 5 = 15
factors
product
What do we call the numbers you are multiplying?
What is the answer to a multiplication problem called?

3. *What patterns do you see?
Solve these problems on your whiteboard using repeated addition:
2 x 40 = ______
5 x 20 = ______
6 x 50 = ______
*What patterns do you see?

4. Let’s watch a video to learn an easier way!
Envision Math Website

5. Try it out on these problems!
What rule can we make for multiplying a single-digit number by a multiple of 10?
2 x 30 = ______
5 x 50 = ______
9 x 30 = ______
Try it out on these problems!

6. Problem Solving Carefully read the problem.
Underline the question.
[Bracket] important words and numbers. 
Eliminate unnecessary information.  
Solve and check your work.
Adam and his family are going to the amusement park. Each adult ticket costs $30 and each child’s ticket costs $20. If there are 2 adults and 5 children, how much will the tickets cost?
Decide on a strategy to solve the problem (repeated addition, equal groups, skip counting, make an array)
Start writing your explanation by explaining each step using the word because.
Write a sentence stating the answer to the question with a correct label.