Speed - Which is Less Time - Changed Time Units (Level 2)

This math topic focuses on comparing time durations taken by different moving objects when experienced speed and distance are given in various units. Specifically, it practices solving problems related to "Which takes less time?" where students must compare how long two bugs, bacteria, or planes take to travel specified distances at given speeds. Speed units vary among problems and are presented in meters per hour, centimeters per minute, millimeters per second, and kilometers per minute, requiring students to convert units to determine which object travels faster over the given distance.

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

Which is Less Time - Changed Time Units

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

Car A drives at 7mm/ms and goes 40mm. Car B drives at 10,000mm/s and goes 40mm. Which takes less time?

Speed - Which is Less Time - Changed Time Units Worksheet

Math worksheet on 'Speed - Which is Less Time - Changed Time 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/

Bacteria A moves at 8cm/d and goes 30cm. Bacteria B moves at 0.2083cm/hr and goes 40cm. Which takes less time?

Bacteria A moves at 6mm/d and goes 50mm. Bacteria B moves at 0.31mm/hr and goes 30mm. Which takes less time?

Bug A crawls at 3mm/s and goes 20mm. Bug B crawls at 200mm/min and goes 20mm. Which takes less time?

Bug A crawls at 10m/hr and goes 50m. Bug B crawls at 120m/d and goes 20m. Which takes less time?

Horse A trots at 13m/min and goes 50m. Horse B trots at 375m/hr and goes 50m. Which takes less time?

Bug A crawls at 3m/min and goes 20m. Bug B crawls at 429m/hr and goes 50m. Which takes less time?

Horse A trots at 8m/min and goes 50m. Horse B trots at 0.125m/s and goes 30m. Which takes less time?