1. 2.1 Patterns of Multiplication
Objective: 6.C.1.a Multiply Whole Numbers
Assessment limits: Use a 3-digit factor by any other factor with no more than 2-digits and whole numbers (0-10,000)

2. Multiplication
Repeated Addition

3. Factor
A number multiplied to give a product; for example, 3 and 5 in 3 X 5

4. Product
The answer in a multiplication problem

5. Use basic facts and patterns to find products
Find 400 X 700
Basic fact is 4 X 7 = 28
Pattern: 4 X 70 = 280
4 X 700 = 2800
40 X 700 = 2,8000
400 X 700 = 280,000

6. You can count the zeros in the factors
Step 1: Find the Basic Fact 4 X 7 = 28
Step 2: Count the number of zeros in each factor.
400 X 700
2 Zeros + 2 zeros= 4 zeros
Step 3: Write the zeros to the right of the product in Step 1
400 X 700 = 280,000
Zeros From Step 2
Product from Step 1

7. Think: Sometimes there is an extra zero in the product.
Can anyone give me an example?
Basic Fact 5 X 6 =
Pattern: 5 X 60 = 300
5 X 600 = 3000
50 X 600 = 3,0000
500 X 600 = 300,000 30

8. Multiply
4 X 400 =
1,600

9. Multiply
6 X 50 =
300

10. Multiply
100 X 12 =
1,200

11. Copy and Complete 2 X 40 = 80 2 X 400 = 800 20 X 400 = 200 X 400 =
8000
80,000

12. Copy and Complete 350 7 X 50 = 7 X 500 = 3500 70 X 500 = 700 X 500 =
35000
350,000

13. Copy and Complete 960 8 X 120 = 8 X 1200 = 80 X 1200 = 800 X 1200 =
9600
96000
960,000

14. Copy and Complete 300 5 X 60 = 5 X 600 = 3000 50 X 600 = 500 X 600 =
30000
300,000

15. How many zeros will be in the product of 500 and 4,000? Explain
Exit Ticket
How many zeros will be in the product of 500 and 4,000? Explain