Reteaching
Name
6-2
3 as a Factor
You can use an array to show 3s facts.
3s Facts
3x0= 0
3 x 5 = 15
3x1= 3
3 x 6 = 18
3x2= 6
3 x 7 = 21
3x3= 9
3 x 8 = 24
3 x 4 = 12
3 x 9 = 27
Multiply 2 x 3 using arrays.
000
0 00
2x3=6
You can also use a 2s and a 1 s fact to find a 3s fact.
Find 7 x 3.
a. Find a 2s fact with 7: 2 x 7 =14
b. Find a 1s fact with 7: 1 x 7= 7
c. Add the facts: 14 + 7 = 21
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Find each product.
1. 3 x 2
2. 3 x 4
3. 3 x 5
4. 3 x 1
5. 3 x 9
6. 6 x 9
7. 7 x 3
8. 0 x 3
9. 8 x 5
10. 3 x 3
11. Reason How can you use a 2s fact and a 1s fact to find 3 x 8?
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Practice
Name
6-2
3 as a Factor
Find the product.
1. 1 x 3
2. 3 x 7
3. 6 x 3
4. 8 x 3
6. 3 x 2
7. 4x3
8. 3x0
9. 2 x 7
11.
5
x3
12.
10
x3
13.
2
x3
16. A bicycle store also sells tricycles.
It has 6 tricycles in stock. How
many wheels do the tricycles have
in all?
14.
3
x9
5. 10 x 5
10. 3 x 3
15.
9
x3
17. There were 5 people who bought
tickets to a football game. They
bought 3 tickets each. How many
tickets were bought in all?
18. Model What addition sentence
is equal to 4 x 3?
19. How many small squares are
in the figure below?
20. Construct Arguments Maria said 7 x 3 = 21.
Connie said 3 x 7 = 21. Who is correct? Explain.
21. Which number is a multiple of 3?
A 16
B 20
C 24
D 28
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