Multiplicative Comparisons
Theta has 16 lollipops. Peyton has 4 times as many lollipops as Theta.
How many lollipops does Peyton have?
64 lollipops
3x4x2 ______ 7x4
24 < 28
Which number is a factor of 21 but not a multiple of 3?
A. 2
B. 4
C. 5
D. 7
D. 7
Audriana has piano practice 6 days each week. Her friend Emma has practice 3 fewer days each week. Which equation would tell you how many days Emma has practice each week?
6-3 = p
Emma has practice 3 days a week
You spend 14 minutes reading every day. Is it reasonable to say that you spend about 80 minutes reading in a 5 day week? Show your work!
No, it is not reasonable.
14 --> 10
10x5 = 50 minutes
80 is much more than 50 so it's not reasonable!
James bought a box of 42 pencils. This is 6 times the number of pencils that Garrett has in his box of pencils. How many pencils are in Garrett's box? Show your work!
7 pencils
because 42/6 = 7
8 x 12 ____ 12 x 8
=
Find ALL the factors of 28.
1, 2, 4, 7, 14 and 28.
1x28
2x14
4x7
KJ has a football card collection. He has 22 more football cards than Marco. Marco has 37 cards. How many football cards does KJ own? Write an equation using a variable for the unknown.
22 + 37 = f
KJ has 59 football cards.
There are 42 pretzel bags in a box. The 4th grade teachers are purchasing the treats to give to the 97 fourth graders at the fall parade. Is it reasonable for the teachers to say that they need to purchase 3 boxes? Show your work!
Yes, it is reasonable!
42x3= 126
While this is high, 3 boxes are needed to give each 4th grader a bag! 42x2= 84 which is NOT enough!
Luis raised $45 dollars. This is three times what Anthony raised. How much did Anthony raise? Write an equation to go with your answer.
45/3 = 15 OR 15x3= 45
Anthony raised $15
37 ____ 37 = 1
/
(divided by)
Read the following three statements.
• 5 is a multiple of 20.
• 18 is a factor of 9.
• 12 is a multiple of 3.
Only one of the statements is correct. Which one is it?
12 is a multiple of 3
3x4= 12
7 people ride a rollercoaster 5 times, and it is $3 per person per ride. Write an equation with a variable to find the total price they paid to ride. Then solve the problem.
7x5x3 = p
35 x 3 = $105
Elle wants to make cookies for the whole fourth grade. One batch of cookie dough makes 3 dozen cookies. There are 68 fourth graders. Is it reasonable for Elle to make one batch of cookies?
one batch = 36 cookies (12x3) which is NOT enough!
Callum has a bag of marbles. Inside he has 20 blue marbles, 5 red marbles, 10 green marbles, and 2 yellow marbles.
Callum has 4 times fewer red marbles than _______ marbles?
blue marbles
4x5= 20 and there are 20 blue marbles.
There are 6 lions at each of the 3 zoos in our state. How many lion legs is that in all?
6x3x4 = 72 legs
Which of the following are multiples of 7?
a. 14, 21, 28, 35, 43
b. 7, 21, 28, 35, 42
c. 21, 28, 36, 42, 49
d. 49, 7, 14, 48, 35
b. 7,21,28,35,42 are all multiples of 7
7x1, 7x3, 7x4, 7x5, 7x6
There are 10 fewer robins than cardinals. There are 3 times as many bluebirds as robins. There are 16 cardinals. How many birds are there in all?
16-10= 6 robins
6x3 = 18 bluebirds
16 cardinals
so,
6+18+16= 40 birds in all!
Cameron and Declan have a lemonade stand. They charge $1 for 2 cups of lemonade. They sell 14 cups each afternoon. Is it reasonable to say Cameron and Declan earned more than $50 after 3 afternoons? Show your work!
No, it is not reasonable!
$14/2 = $7 per day
$7 x 3 afternoons = $21.
21 is a lot less than $50.
Felicity has 27 erasers. Eva has 9 pens. Write a multiplicative comparison number sentence about Felicity's erasers and Eva's pens.
Felicity has 3 times more erasers than Eva has pens.
Trey made two 3-pointers in each of his 7 games this season! How many points did Trey score in all?
3x2x7 = 42 points
Which of the following statements is true?
A. 18 is a multiple of 2, 3, 4, and 9.
B. The number 8 has four factors – 1, 3, 4, and 8.
C. 24 is a factor of 4.
D. 36 is a multiple of 6 and 9.
D is true
6x6=36
9x4= 36
Samiran earns $5 mowing lawns. He cuts 3 lawns a week. Parker earns $7 raking leaves. He rakes 4 yards a week. How much did Samiran and Parker earn this week? Write an equation with a variable for the unknown that you would use to solve the problem!
(5x3) + (7x4) = e
15+28
Meredith can carry a basket 6 feet. Liam can carry it 3 times further than Meredith. Nik can carry it half as far as Liam. Is it reasonable to say they can carry it 30 feet?
6+18+9 = 33
Yes it is reasonable!
6+18+9 = 33
6x3=18 ; half of 18 is 9