Robert's mother pours a cup of milk for him and then realizes that the cup has a small crack in the rim. Not wanting her son to cut his lip, she pours the milk into another cup. The second cup happens to be shorter and wider than the first cup. Robert is not upset because he knows that the amount of milk has remained the same. Robert is at LEAST _____ years old.

Respuesta :

Answer:

7 years old

Step-by-step explanation:

Robert's mother pours a cup of milk for him and realizes that cup has a small crack so she pour the milk into another cup. Robert is not upset because he knows that the amount of milk has remained same.

As Robert is 7 year old . He can groups the milk in the cup according to size , shape and color. He has a better understanding of numbers and can understand problems easily.