Additive or Multiplicative Comparison
Ava has 12 markers. Lily has 7 more markers than Ava.
Is this an additive or multiplicative comparison?
Additive
Ben has 8 toy cars.
Jacob has 5 more toy cars than Ben.
How many toy cars does Jacob have?
13
Lily has 7 pencils.
Emma has 4 more pencils.
Which equation matches?
A. 7 + 4 = □
B. 7 × 4 = □
C. 7 ÷ 4 = □
D. 7 − 4 = □
A. 7 + 4 = □
True or False:
"4 times as many" describes a multiplicative comparison.
True
Which number is written in expanded form?
A. 43,526
B. 40,000 + 3,000 + 500 + 20 + 6
C. Forty-three thousand fifty-six
D. 435 + 26
B. 40,000 + 3,000 + 500 + 20 + 6
A tree is 8 feet tall.
Another tree is 6 times as tall.
Is this an additive or multiplicative comparison?
Multiplicative
A rabbit weighs 9 pounds.
A dog weighs 7 times as much.
How much does the dog weigh?
63 pounds
A horse weighs 5 times as much as a goat.
The goat weighs 18 pounds.
Which equation finds the horse's weight?
A. 18 × 5 = h
B. 18 + 5 = h
C. 18 ÷ 5 = h
D. 18 − 5 = h
A. 18 × 5 = h
James says,
"If someone has 6 more marbles, I should multiply by 6."
Is James correct?
NOOOOOOOOOOOOO
In the number 84,263, the 4 is how many times greater than the 4 in 8,423?
A. 10 times
B. 100 times
C. 1,000 times
D. They are equal
B. 100 times
Which statement represents a multiplicative comparison?
A. Emma has 15 more books than Noah.
B. Emma has 15 books.
C. Emma has 5 times as many books as Noah.
D. Emma has 15 fewer books than Noah.
C. Emma has 5 times as many books as Noah.
Emma has 72 trading cards.
She has 8 times as many cards as Noah.
How many cards does Noah have?
9 cards
Emma has 84 beads.
She has 7 times as many beads as Mia.
Which equation finds Mia's beads?
A. 84 + 7 = m
B. 84 ÷ 7 = m
C. 84 × 7 = m
D. 84 − 7 = m
B. 84 ÷ 7 = m
Maria has 12 stickers.
Sofia has 3 times as many stickers.
Lucas has 9 more stickers than Sofia.
How many stickers does Lucas have?
Answer:
12 × 3 = 36
36 + 9 = 45
Which comparison is correct?
A. 53,921 < 53,912
B. 47,503 > 47,530
C. 81,299 > 81,209
D. 65,400 = 65,040
C. 81,299 > 81,209
A student says,
"Whenever I see the words more than, I should multiply."
Is the student correct? Explain why or why not.
No. "More than" tells us to add. Words like "times as many" tell us to multiply.
A soccer team scored 9 goals.
Another team scored 4 times as many goals.
Then 11 goals were removed because of penalties.
How many goals does the second team have now?
9 × 4 = 36
36 − 11 = 25 goals
The library has 96 fiction books.
That is 8 times as many as the number of mystery books.
Which equation should be used?
96 ÷ 8 = m
Noah has 15 baseball cards.
Emma has 4 times as many baseball cards as Noah.
Ben has 18 fewer baseball cards than Emma.
How many baseball cards does Ben have?
15 × 4 = 60
60 − 18 = 42
What is the missing number?
38,456 + □ = 72,901
A. 34,445
B. 44,545
C. 35,455
D. 33,445
A. 34,445
Which situation represents an additive comparison?
A. Mia has 6 times as many stickers as Ava.
B. Noah has 18 more stickers than Liam.
C. A farmer plants 8 rows of 12 flowers.
D. A classroom has 4 groups of 6 students.
B. Noah has 18 more stickers than Liam.
A zoo has 8 monkeys.
There are 6 times as many parrots as monkeys.
Then 15 parrots are moved to another zoo.
How many parrots remain?
8 × 6 = 48
48 − 15 = 33 parrots
The science club collected 144 batteries.
That was 9 times as many as the art club collected.
Which equation finds how many batteries the art club collected?
A. 144 ÷ 9 = a
B. 144 + 9 = a
C. 144 − 9 = a
D. 144 × 9 = a
A. 144 ÷ 9 = a
Emma says,
"Liam has 5 times as many pencils as Noah."
Noah has 12 pencils.
Another student says Liam has 17 pencils.
Is the other student correct? Use numbers or words to explain your answer.
no :(
A school collected 28,975 cans during the fall food drive.
In the winter, they collected 14,638 more cans.
Then they donated 19,482 cans.
How many cans did the school have left?
A. 24,131
B. 43,613
C. 24,131
D. 24,131
D. 24,131