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?
Card #1
Explain your reasoning.
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?
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
Explain your reasoning.
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 Taylor’s 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.