Speed, distance, time

Speed · Measurement

Use distance = speed × time to find any one of the three.

This is step 3 of unit 8, “Speed”, in Stage 7: Dividing fractions and decimals, ratio and percent, circles and volume (ages 13). A round has 10 problems; 90% or better earns three stars. Everything is free with no sign-up, and your stars and XP are saved on this device.