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Tina and Holly both had to buy the same string for a school project. Tina bought

78.4 meters (m) of string and Holly bought 784 centimeters (cm) of string. Who needed more money for their purchase of string?

Explain your reasoning. Card #1

Ms. Skipper drove 9.65 kilometers (km) when she went to visit her grandmother. Mr.

Bridges drove 96500 meters(m) to visit his daughter in college. If they drive the same car, who needed more gas for the trip?

Explain your reasoning. Card #2

Explain your reasoning.

Michael and Haley both played in the little league baseball

game last night. Michael hit the ball 229 meters(m). Haley hit

the ball 2290 centimeters (cm). Both students believe that they

hit the ball farther than the other. Who is correct?

Card #3

Explain your reasoning.

Allison and David raced each other to see who could run a

farther distance in 10 minutes. Allison ran 8960 decimeters (dm) and David ran 896000

millimeters (mm) in that time. Who ran a farther distance?

Card #4

Michelle was training for the Olympics. She wants to

compete in the 1500 meters (m) race. Her friend Taylor told her

that is same distance as 15 centimeters (cm). Michelle told

Taylor she is wrong. Explain Taylors mistake in converting from meters to centimeters

(cm).

Card #5

Answer Key For Task Cards• Card #1 – 78.4m is equal to 7840cm (multiply by 100) or 784cm is

equal to 7.84m (divide by 100)

Tina needs more string.• Card #2 – 9.65km is equal to 9650m (multiply by 1000) or 96500m is

equal to 96.5m (divide by 1000)

Mr. Bridges drove a farther distance and needs more gas.• Card #3 – 229m is equal to 22900cm (multiply by 100) or 2290cm is

equal to 22.90m

Michael is right. He hit the ball a farther distance.• Card #4 – 8960dm is equal to 896000mm 896000mm is equal to

8960dm

Allison and David ran the same distance. • Card #5 - Taylor was converting 1500 meters to centimeters. She

needs 100cm for every meter and will need to multiply 1500 by 100 to find the number of centimeters that will be the same distance. Taylor divided instead, which you would do when converting from smaller units to larger units.