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Speed - Which is Less Time - Changed Both Units (Level 1)

This math topic explores problems related to calculating the time taken by different creatures (bugs and bacteria) to travel specified distances at given speeds. The scenarios require conversion between different units of speed and distance (such as cm/min, m/s, mm/hr, and cm/d) to determine which creature completes its journey in less time. This set of problems is advanced and part of a broader unit on Speed, Distance, and Time, designed to challenge understanding and application of these concepts in varying contexts.

Work on practice problems directly here, or download the printable pdf worksheet to practice offline.

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Which is Less Time - Changed Both Units

Complete these online problems with 80% or 4 correct answers in a row. Results are immediate.


Bug A crawls at 1m/hr and goes 4m. Bug B crawls at 3,000cm/d and goes 500cm. Which takes less time?

Speed - Which is Less Time - Changed Both Units Worksheet

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Math worksheet on 'Speed - Which is Less Time - Changed Both Units (Level 1)'. Part of a broader unit on 'Speed, Distance, and Time - Advanced' Learn online: app.mobius.academy/math/units/speed_distance_time_advanced/
1
Bacteria A moves at 1cm/d and goes 5cm. Bacteria B moves at 0.0003m/hr and goes 0.05m. Which takes less time?
a
Bacteria A
b
Bacteria B
2
Bacteria A moves at 1mm/min and goes 4mm. Bacteria B moves at 0.001cm/s and goes 0.3cm. Which takes less time?
a
Bacteria A
b
Bacteria B
3
Bug A crawls at 1cm/min and goes 3cm. Bug B crawls at 257mm/hr and goes 30mm. Which takes less time?
a
Bug A
b
Bug B
4
Bacteria A moves at 1cm/d and goes 5cm. Bacteria B moves at 0.5mm/hr and goes 50mm. Which takes less time?
a
Bacteria A
b
Bacteria B
5
Horse A trots at 1m/s and goes 3m. Horse B trots at 3,429cm/min and goes 400cm. Which takes less time?
a
Horse A
b
Horse B
6
Bacteria A moves at 1mm/min and goes 4mm. Bacteria B moves at 0.001cm/s and goes 0.5cm. Which takes less time?
a
Bacteria A
b
Bacteria B
7
Bug A crawls at 1m/hr and goes 3m. Bug B crawls at 1cm/min and goes 400cm. Which takes less time?
a
Bug A
b
Bug B