Rational or Irrational

Which of the following is an integer?

• -3

• 1/4

• -12.5

• 0.454545...

Which of the following statements is true?

• Every rational number is an integer.

• Every whole number is a rational number.

• Every irrational number is a natural number.

• Every rational number is a whole number.

Which of the following accurately describes the square root of 10?

• It is rational.

• It is irrational.

• It is an integer.

• It is a whole number.

The number 57 belongs to which of the following set(s) of numbers?

• N only

• N, W, and Z only

• N, W, Z, and Q only

• All of the following: N, W, Z, Q, and R

From the following set: {-√5.7, -9, 0, 5.25, 3i, √16} Select the answer choice that shows the elements which are Natural numbers.

• -√5.7, -9, 0, 5.25, 3i, √16

• -√5.7, -9, 0, 5.25, 3i

• 3i

• Positive square root of 16

From the following set: {-√5.7, -9, 0, 5.25, 3i, √16} Select the answer choice that shows the elements that are Rational numbers.

• -√5.7, -9, 0, 5.25, 3i, √16

• -9, 0, 5.25, √16

• 3i

• -√5.7

Which of the numbers below is irrational?

• √169

• √4

• √16

• √3

Write the repeating rational number 0.1515... as a fraction.

• 85/100

• 15/75

• 15/99

• 25/50

Write the repeating rational number .112112... as a fraction.

• 112/100

• 112/99

• 112/999

• 111/999

Which of the following is true of the square root of 2?

• It is both real and rational.

• It is real but not rational.

• It is rational but not real.

• It is neither real nor rational.