Factors
Write down all the factors of 11. Is the number prime or composite?
1, 11 PRIME
List 3 multiples of the number 2.
2, 4, 6 etc.
Fill in the blanks:
7 x 8 = ____
50 x ___ = 100
6 x ___ = 36
56
2
6
The equation 4 x 8 = 32 can mean:
A. 32 rulers are 4 rulers and 8 rulers put together
B. 32 pencils are 4 times as many as the 8 pencils at green table
C. 32 markers are 4 markers less than 8 markers
D. 4 erasers split into 8 groups is 32 erasers.
B: 32 pencils are 4 times as many as the 8 pencils at green table
Write the missing dimensions on the rectangles on the whiteboard
5, 8
Write down all the factors of 12. Is the number prime or composite?
1, 2, 3, 4, 6, 12 COMPOSITE
List 3 multiples of the number 6.
6, 12, 18, etc.
Fill in the blanks:
___ x 4 = 28
___ x 9 = 36
7 x ____ = 49
7
4
7
The equation 9 x 7 = 63 can mean:
A. 9 folders and 7 folders together are 63 folders
B. 9 erasers divided into 7 groups is 63 erasers
C. 63 crayons are 9 times the 7 crayons at green table
D. The difference between 9 binders and 7 markers is 63
C. 63 crayons are 9 times the 7 crayons at green table
Kavya saw 4 columns of markers in a box of 36 markers. How many markers are in each column? (equation, answer with units)
36 / 4 = 9 markers
OR
___ x 4 = 36
Answer: 9 markers
1, 2, 3, 6, 9, 18 COMPOSITE
List 3 multiples of the number 11.
11, 22, 33, etc.
Write and solve (include units) a multiplication equation for this problem:
Aadit is 12 years old. Aadit's uncle is 5 times older than Aadit. How old is Aadit's uncle?
12 x 5 = y
y = 60 years old
Pick the 2 equations that best represent this situation: Tuan has 15 toy cars. That is 3 times as many as his friend Jose has. How many toy cars does Jose have?
A. 15 = 3 x c
B. 15 x 3 = c
C. 15 - 3 = c
D. 15 / c = 3
A. 15 = 3 x c
D. 15 / c = 3
Fill in this ratio table:
1 | 2 | ____ | _____ | 9
----------------------------------------
8 | ___ | 40 | 80 | ____
1 | 2 | 5 | 10 | 9
----------------------------------------
8 | 16 | 40 | 80 | 72
Write down all the factors of 24. Is the number prime or composite?
List 3 multiples of the number 15.
15, 30, 45, etc.
Tammy bought a dress and a sweater. The dress cost 2 times as much as the sweater. The sweater cost $19. How much did the dress cost?
19 x 2 = $38
Pick the 2 equations that best represent this situation: Chloe picked 20 flowers. That is 4 times as many as her friend Arianna picked. How many flowers did Arianna pick?
A. 20 x 4 = f
B. 20 = 4 x f
C. 20 / f = 4
D. 20 - 4 = f
B. 20 = 4 x f
C. 20 / f = 4
Tirth's table group has 5 students and each student brought 3 pencils. Aubrey's table group has 5 students and each student brought 5 pencils. After collecting the pencils, Miss Philip divided them evenly among the students at those two tables. How many pencils did each student get? (equation, work, answer with units)
p = (5x3) + (5x5) / 10
p = (15 + 25) / 10
p = 40 / 10
p = 4 pencils per student
Write any prime number and tell me how you know it's prime.
Write any composite number and tell me how you know it's composite.
Answers vary.
List 3 multiples of the number 24.
24, 48, 72, etc.
Joey bought a video game and a DVD. The video game cost $36. The DVD cost $9. How many times more than the DVD did the video game cost?
36 / 9 = 4 times more
RANDOM BONUS QUESTION:
Write down all the multiplication equations for 8. Whoever is the fastest and most correct will get a power ticket (and win the points for their team)!
(8x0 =, 8x1= , 8x2=, 8x3 -, etc all the way up to 8x10)
0, 8, 16, 24, 32, 40, 48, 56, 64, 72, 80
There are 5 students in purple group. They each brought 3 packs of paper to school. The class needs 8 times as much paper as the entire purple group brought to last the whole year. How many packs of paper does the class need? (need equation, answer with units)
Equation: 5 x 3 = 15 x 8 = 120
Answer: 120 packs of paper