Mr. Robert'S Robots - Math Worksheet With Answers

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Mr. Robert’s Robots
Mr. Robert designed three robots to do different things at different intervals of time.
AR1 does something every 2, 9, and 10 minutes. BR2 does something every 3, 5, and 10
minutes. CR3 does something every 2, 3, and 5 minutes.
AR1
CR3
BR2
2 minutes: squeaks
3 minutes: spins around
2 minutes: turns head
9 minutes: flashes eyes
5 minutes: flaps arms
3 minutes: claps hands
10 minutes: blows
10 minutes: nose
5 minutes: screams
bubbles
lights up
Mr. Robert turns all the robots on at exactly 12 o’clock. Solve each problem.
What will happen at 2 minutes past 12?
1.
How many minutes after 12 will BR2 both spin around and flap its arms?
2.
At what time will CR3 do all three of its actions at once?
3.
At what time will AR1 both squeak and flash its eyes?
4.
What will each of the robots do at 9 minutes after 12?
5.

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