Review #6
Presentation
•
Mathematics
•
4th Grade
•
Medium
Donna Hart
Used 2+ times
FREE Resource
5 Slides • 8 Questions
1
Factors
Factors with arrays and T models
2
What are Factors?
Factors are all the numbers that multiply into a given number.
For example : all the Factors for 12 are:
1, 2, 3, 4, 6, 12
How did we get those numbers?
We found all the numbers that can multiply together to equal 12 and put them in least to greatest order.
1x12, 2x6, 3x4 --> 1, 2, 3, 4, 6, 12
3
T charts or models
T charts are another way to find factors. They organize the numbers to help you not repeat numbers
4
Fill in the Blanks
Type answer...
5
Fill in the Blanks
Type answer...
6
T charts help you list your factors!
They help you list your factors in order from least to greatest.
7
Fill in the Blanks
Type answer...
8
Multiple Choice
How many factor PAIRS does the number 9 have?
Draw a T chart.
1
2
3
4
9
The number 9 has 2 factor PAIRS
1x9 and 3x3
10
Multiple Select
HINT: When you count by 2s, which number(s) do you get to? Check them.
Check all the correct answers.
Which of the following numbers have 2 as a factor?
8
10
15
24
11
Multiple Select
HINT: When you count by 5s, which number(s) do you get to?
Check all the correct answers.
Which of the following numbers have 5 as a factor?
15
20
25
32
12
Multiple Choice
Is 3 a factor of 21?
HINT: When you count by 3s, do you reach the number 21?
yes
no
13
Multiple Choice
Which lists all the factors of 15?
Draw a T
1, 7, 8, 15
1, 15
1, 3, 5, 15
3, 5, 15
Factors
Factors with arrays and T models
Show answer
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