Merlins Cave Problem
Add and Subtract Time – 3rd 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
Jane starts school at 8:00 a.m. and has her first recess at 11:30 a.m.. How long is she in school before her first recess?
A) 1 hr B) 2 hrs 30 min
C) 3 hrs 30 min D) 3 hrs
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 #2
Katie started her lollipop at 2:25 p.m., but didn’t finish it until 4:13 p.m.. How long did it take her to finish her lollipop?
A) 1 hr 30 min B) 2 hrs 15 min
C) 1 hr 45 min D) 1 hr 48 min
A) Fire Vase
B) Large Vase
C) Globe
D) Astronomy Tool
Type in the numbers to get your clue.
Clue Box
Question #3
Jane starts school at 8:15 a.m. and has her first recess at 11:20 a.m.. How long is she in school before her first recess?
A) 2 hrs 45 min B) 2 hrs 5 min
C) 3 hrs 5 min D) 3 hrs
A) Hourglass
B) Mini Table
C) Globe
D) Spell Book
Type in the numbers to get your clue.
Clue Box
Question #4
Jim played with his friend for 2 hours and 18 minutes. If he arrived at his friend’s house at 3:12, then when did he leave?
A) 5:37 B) 6:26
C) 6:30 D) 5:30
A) Dragon
B) Magic Staff
C) Spell Book
D) Astronomy Tool
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.