Which is Less Time - Changed Distance Units (Level 1)

This math topic focuses on advanced calculations involving speed, distance, and time. It enhances skills in comparing travel times of various objects (like rockets, bacteria, and bugs) given different speeds and distances. The problems require converting and equating units of measurement like meters, centimeters, and millimeters across situations to determine which object takes less time to complete its journey. This set of problems serves as a practical application of the mathematical concepts of unit conversion and rate comparison.

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

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Speed - Which is Less Time - Changed Distance Units Worksheet

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Speed - Which is Less Time - Changed Distance Units
1
Bacteria A moves at 0.5cm/hr and goes 2cm. Bacteria B moves at 0.07dm/hr and goes 0.5dm. Which takes less time?
a
Bacteria A
b
Bacteria B
2
Horse A trots at 0.6mm/ms and goes 3mm. Horse B trots at 0.03cm/ms and goes 0.2cm. Which takes less time?
a
Horse A
b
Horse B
3
Bacteria A moves at 0.29dam/d and goes 2dam. Bacteria B moves at 0.1hm/d and goes 0.4hm. Which takes less time?
a
Bacteria A
b
Bacteria B
4
Horse A trots at 0.83dam/min and goes 5dam. Horse B trots at 0.08hm/min and goes 0.4hm. Which takes less time?
a
Horse A
b
Horse B
5
Bug A crawls at 0.43dm/s and goes 3dm. Bug B crawls at 6.25cm/s and goes 50cm. Which takes less time?
a
Bug A
b
Bug B
6
Horse A trots at 0.25mm/ms and goes 2mm. Horse B trots at 0.08cm/ms and goes 0.3cm. Which takes less time?
a
Horse A
b
Horse B
7
Bug A crawls at 0.5m/hr and goes 3m. Bug B crawls at 60cm/hr and goes 300cm. Which takes less time?
a
Bug A
b
Bug B
8
Bug A crawls at 0.8dam/hr and goes 4dam. Bug B crawls at 0.029hm/hr and goes 0.2hm. Which takes less time?
a
Bug A
b
Bug B