Navy Pier and much of Chicago closed by virus

What is the basic property of the number 19?

• It is an even number.

• It is a composite number.

• It is a perfect square.

• It is a prime number.

Which of the following is a correct multiplication involving 19?

• 19 x 2 = 38

• 19 x 3 = 56

• 19 x 4 = 80

• 19 x 5 = 100

What is the result of adding 19 to 10?

• 28

• 29

• 31

• 30

In which context is the number 19 significant?

• It is the atomic number of potassium.

• It is the atomic number of oxygen.

• It is the number of letters in the English alphabet.

• It is the number of players in a soccer team.

Which of the following is a real-world application of the number 19?

• 19 is the number of holes in a standard golf course.

• 19 is the number of hours in a day.

• 19 is the number of months in a year.

• 19 is the number of years in a generation.