Rational vs. Irrational Milestone Practice

Is the sum of 0.75 and –2.25 a rational or an irrational number?

• Rational

• Irrational

Answer explanation

The sum is a rational number. The sum is –1.50, which can be rewritten as the fraction –150/100 .

• Rational

• Irrational

• Rational

• Irrational

Which sum is rational?

Which product is irrational?

• Rational

• Irrational

Answer explanation

The sum is irrational since it cannot be written as a fraction and the sum of a rational number and an irrational number is irrational.

• Rational

• Irrational

Look at the steps used when solving 3(x – 2) = 3 for x.

Which step is the result of combining like terms?

• Step 1

• Step 2

• Step 3

• Step 4