Factors
The whole numbers that multiply together to get a specific product. For example, 2 and 6 are factors of 12 because 2 x 6 = 12.
A number you get by multiplying a whole number by another whole number. You can find multiples by skip-counting.
Find the area of the rectangle in square centimeters
40 square centimeters
I want to arrange the students in our class into equal rows. How many rows can we have if we have 24 students in our class? How many students will be in each row?
Hint: There are many possibilities.
1 row of 24
2 rows of 12
3 rows of 8
4 rows of 6
Define prime
A prime number for kids is a whole number greater than 1 that can only be divided exactly by the number 1 and itself. For example, 3 is a prime number because you can only divide it evenly by 1 and 3. It only has 2 factors.
List the factor pairs for the number 12
1 x 12
2 x 6
3 x 4
List the first 10 multiples of 5
5, 10, 15, 20, 25, 30, 35, 40, 45, 50
Find the area of the rectangle in square centimeters.
36 square inches
Pens are sold in packages of 5 and also in packages of 6. Jada wants to buy 60 pens for her class. Which packages of pens and how many should Jada buy if she wants to buy the fewest amount of boxes?
She should buy the boxes of 6, and will need to buy 10 boxes.
Define Composite
A whole number that can be divided evenly by other numbers besides 1 and itself. It has many factors.
List the factors of 35
1, 5, 7, 35
List the first 6 multiples of 8
8, 16, 24, 32, 40, 48
If a rectangle has a side length of 10ft, and an area of 50 feet, what is the other side length of the rectangle?
5 feet
Each lunch table seats 6 students. There are 54 students. How many tables are needed so that everyone has a seat?
9 tables, because 6 x 9 = 54
Is 13 prime or composite? Why?
Prime, because it only has 2 factors (1 and 13)
True or false: 6 is a factor of 48
TRUE: 6 x 8 = 48
I'm thinking of a number. Some multiples of the number are 30, 15, 20, and 10. What is my number?
5
Find the perimeter of the rectangle
26 inches
Anna jumps rope every 4 days. Ben jumps every 6 days. After how many days will they both jump rope on the same day again?
On the 12th day they will both jump rope.
Is 37 prime or composite?
Prime, it only has 2 factors (1 and itself)
I'm thinking of a number. Some of it's factors are 2, 3, 4, and 6. What could be my number?
12, 24, 36, 48, and so on.
True or false: 7 is a multiple of 21
FALSE: 7 is a factor of 21
Find the area and perimeter of the rectangle
Area:
Perimeter:
Each school bus holds 12 students. There are 96 students going on a field trip. How many buses will they need?
8 buses because 12 x 8 = 96
Are all prime numbers odd?
No, 2 is prime and it is not odd.