How much do you remember about: Number Families?

We know that π (Pi) is approximately equal to 3.141592654... To which subset of the real numbers does π belong?

• Irrational Numbers

• Rational Numbers

• Integers

• Natural Numbers

Which integer is a perfect square?

• 169

• 24

• 10

• 212

0 is a Natural Number.

• True

• False

Where would you place the number -9 on the diagram?

• Integers
• Whole 
• Natural 
• Rational

Which set is in descending order?

• 15%  .45  9/10
• .45  15%  9/10
• 9/10  15%  .45
• 9/10  .45  15%

Which of the following can be classified as a whole number?

• -3.5

• $\frac{5}{4}$

• 245

• 0.66

Which set of numbers most closely represents "Natural Numbers."

• . . .-3, -2, -1, 0 , 1, 2, 3, . . .

• 0, 1, 2, 3, . . .

• 1, 2, 3, 4, . . .

Which set of numbers most closely represents the set of Integers?

• . . . -3, -2, -1, 0, 1, 2, 3,. . .

• 0, 1/2, 2/4, 4/8 . . .

• 0, 1/3, $\pi$ , 6 . . .

In between what two integers is the square root of 77?

• 5 and 6
• 6 and 7
• 7 and 8
• 8 and 9

√100

• 15
• 10
• 11
• 12