Merlins Cave Problem
Multiplicative Comparisons – 4th Grade
Watch first
Here are objects that are found inside Merlin’s cave. Be safe as you move around inside the 360 VR tour. Go below to fix Number One’s mistake.
A
If the answer is “A“ find the number on or around this object.
B
If the answer is “B“ find the number on or around this object.
C
If the answer is “C“ find the number on or around this object.
D
If the answer is “D“ find the number on or around this object.
Start!
You may want a piece of paper to solve problems.
Question #1
A blue ball costs $4. A red ball costs 2 times as much as the blue ball.
How much does the red ball cost?
A) $6 B) $7
C) $8 D) $9
A) Large Vase
B) Mini Table
C) Metal Shape
D) Globe
Question #2
A blue ball costs $6. A red ball costs 3 times as much as the blue ball.
How much does the red ball cost?
A) $14 B) $18
C) $16 D) $20
A) Magic Staff
B) Astronomy Tool
C) Spell Book
D) Metal Shape
Type the numbers from the objects to get your first clue. Write the clues down as you will need all of them to unlock the master lock.
Clue Box
Question #3
A blue ball costs $8. A red ball costs 3 times as much as the blue ball.
How much does the red ball cost?
A) $24 B) $30
C) $15 D) $16
A) Telescope
B) Astronomy Tool
C) Dragon
D) Mini Table
Question #4
A betta fish costs $18 which is 6 times more than a regular gold fish.
How much does a regular gold fish cost?
A) $5 B) $3
C) $6 D) $8
A) Fire Vase
B) Large Vase
C) Astronomy Tool
D) Metal Shape
Type in the numbers to get your clue.
Clue Box
Question #5
A betta fish costs $24 which is 4 times more than a regular gold fish.
How much does a regular gold fish cost?
A) $3 B) $6
C) $7 D) $9
A) Large Vase
B) Fire Vase
C) Metal Shape
D) Telescope
Question #6
A betta fish costs $24 which is 6 times more than a regular gold fish.
How much does a regular gold fish cost?
A) $4 B) $7
C) $8 D) $11
A) Hourglass
B) Mini Table
C) Globe
D) Astronomy Tool
Type in the numbers to get your clue.
Clue Box
Question #7
A large fishing pole costs $12 and a small pole costs $6.
How many times as much does the large pole cost as the small pole?
A) 6 B) 4
C) 5 D) 2
A) Hourglass
B) Large Vase
C) Globe
D) Book Stand
Question #8
A large fishing pole costs $21 and a small pole costs $3.
How many times as much does the large pole cost as the small pole?
A) 2 B) 5
C) 6 D) 7
A) Globe
B) Dragon
C) Spell Book
D) Magic Staff
Type in the numbers to get your clue.
Clue Box
Input all the clues to help Merlin fix the mess.
MASTER LOCK
Did you fix the dragon problem?
Share your results with your teacher and parents. Tell them what the Master Lock was and where the key was found.