Factors
What are the factors of 25?
1, 5, 25
What are the first 5 multiples of 100?
100, 200, 300, 400, 500
List 3 prime numbers between 1 - 50
Make an array to represent 36.
See responses.
Mr. Chen bought 28 pencils for his class. The pencils come in packs of 4. How many 4-packs did Mr. Chen buy?
7
Make a factor rainbow for 24
Look at boards.
What are the first 5 multiples of 12?
12, 24, 36, 48, 60
Is 21 a prime number? Why or why not?
No because it has 4 factors 1, 3, 7, 21
If an array has the dimensions of 3 and 7, what is the area?
21
There are 65 apples in 5 baskets. Each basket contains the same number of apples. How many apples are in each basket?
13
What are the factors of 100?
1, 2, 4, 5, 10, 20, 25, 50, 100
What multiple are we counting by?
33, 36, 39, 42
Is 2 a prime number? Why or why not?
Yes because it only has two factors 1 and 2.
How many different arrays could you make to represent 12?
3x4, 2x6, 12x1 (inverse if you want to count those too)
A pencil has a mass of 8 grams. What is the total mass of 7 pencils?
56 grams
Explain the relationship between the factors of 100, 200, and 300.
All factors of 100 are also factors of 200 and 300.
What multiple is missing?
42, ____, 56, 63
Prove if 81 is a prime or composite number.
See responses.
Draw an array for 29.
1x29
Ms. Stubbe had 25 erasers in her pencil case. Ms Rodriguez and Ms. Schulz each had twice as many as her. How many erasers do Ms. Rodriguez and Ms. Schulz each have?
50 erasers.
Is 6 a factor of 103? How do you know?
No it is not. 103 is a prime number.
What is the plan 6th multiple of 9?
54
Prove if 93 is a prime or composite number.
It is composite. 1, 3, 31, 93
There are 28 students in Ms. Stubbe's class. How many different ways could she set up the desks?
2x14, 4x7, 1x28
The Square Park, there were 6 swings. Rectangle Park down the street had 4 times as many swings. How many swings does Rectangle Park have?
24 swings.