Question

To practice for a competition, Carly swam 0.51 kilometer in the pool each day for 3 weeks. How many meters did Carly swim in those 3 weeks?

1 km = 1,000 m

Answer 1

0.51km × 1000 = 510m

510m × (3×7) = 510m × 21 = 10710m in whole

Explanation:

first we transform km to m (multiply by 1000)

then we count how much days are in three weeks ( 3 weeks × 7 days)

then we just multiply the meters per day × the days

99% it's true