Which is the best strategy to solve this problem?



The cook had 45 baked potatoes and 27 glasses of milk. She shared the potatoes and milk equally among 9 trays.



How many items were on each tray?


A.
Guess and test.



Guess that the number of items on each tray is 10. Multiply 9 × 10. Is this the same as the sum of 45 + 27? If not, revise your guess, and test your answer again.


B.
Draw a diagram.



Draw 45 potatoes and 27 glasses of milk. Divide each group into 9 smaller groups. Then divide each of those groups into 2.


C.
Write a number sentence.
45 ÷ 9 + 27 ÷ 9=


45 space obelus divided by space 9 space plus space 27 space obelus divided by space 9 space equals