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Which is Faster - Changed Both Units (Level 2)

This math topic focuses on comparing speeds by requiring conversion between different units of distance (kilometers, meters, centimeters, millimeters) and time (minutes, seconds, hours, days). The problems involve determining which of two given objects (like trains, planes, cars, or bacteria) is traveling faster, after factoring in the conversions necessary to accurately compare their speeds. This advanced section of speed, distance, and time introduces complex problem-solving skills centered around unit conversion and rate comparison.

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

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Which is Faster - Changed Both Units

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


Bug A crawls 30dm in 6min. Bug B crawls 4,000mm in 300s. Which is faster?

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Speed - Which is Faster - Changed Both Units Worksheet

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Math worksheet on 'Speed - Which is Faster - Changed Both Units (Level 2)'. Part of a broader unit on 'Speed, Distance, and Time - Advanced' Learn online: app.mobius.academy/math/units/speed_distance_time_advanced/
1
Horse A trots 50hm in 8hr. Horse B trots 20,000dm in 0.17d. Which is faster?
a
Horse A
b
Horse B
2
Bug A crawls 20dam in 6hr. Bug B crawls 20,000cm in 0.33d. Which is faster?
a
Bug A
b
Bug B
3
Bug A crawls 40mm in 4min. Bug B crawls 2cm in 300s. Which is faster?
a
Bug A
b
Bug B
4
Bug A crawls 30cm in 8s. Bug B crawls 0.03dam in 0.12min. Which is faster?
a
Bug A
b
Bug B
5
Horse A trots 20dam in 5min. Horse B trots 0.2km in 0.13hr. Which is faster?
a
Horse A
b
Horse B
6
Car A drives 30hm in 6min. Car B drives 400dam in 0.12hr. Which is faster?
a
Car A
b
Car B
7
Horse A trots 30dm in 8s. Horse B trots 0.04hm in 5,000ms. Which is faster?
a
Horse A
b
Horse B