A thermos holds 1 1/4 quarts of water. How many thermoses can be filled with 5 quarts of water?
My Answer: 6 1/4 am i right? i just multiplied 1 1/4 and 5 to get 6 1/4.
Let's see if your answer makes sense.
1 1/4 + 1 1/4 + 1 1/4 + 1 1/4 = 5 quarts
Hmm -- that looks like 4 thermoses.
What can you do with the two numbers -- 1 1/4 and 5 to get 4 thermoses?