Mary sees a flock of ducks crossing the street. There are 2 ducks with 5 ducklings each, 6 ducks with 3 ducklings each, and 9 ducks with 6 ducklings each. How many ducks and ducklings are there total? Think carefully first, then make a decision:
First find the total number of ducklings the first two ducks have: 2 ducks * 5 ducklings / duck = 10 ducklings. Then find the total number of ducklings the next six ducks have: 6 ducks * 3 ducklings / duck = 18 ducklings. Then find the total number of ducklings the last 9 ducks have: 9 ducks * 6 ducklings / duck = 54 ducklings. Then add up all the ducks and ducklings to find the total number: 10 ducklings + 18 ducklings + 54 ducklings + 2 ducks + 6 ducks + 9 ducks = 99 ducks. So, the answer is 99.