Module 4 Quarter 3 CER 2 Practice

What is √65 as a decimal rounded to two decimal places?

Answer explanation

√65 = 8.062257... which round to 8.06

Is √65 rational or irrational?

• Rational

• Irrational

Answer explanation

√65 = 8.062257... which is a decimal that is infinite and does not repeat so irrational (also a square root of a non-perfect square = irrational)

What is 3/7 as a decimal rounded to two decimal places?

Answer explanation

3/7 = 0.42857142... rounded is 0.43

What is 216% as a decimal rounded to two decimal places?

Answer explanation

216% is 216/100 which is 2.16

What is (-1.85)² as a decimal rounded to two decimal places?

Answer explanation

(-1.85)² is -1.85 x -1.85 =3.4225 rounded is 3.42

What is (2.5)² as a decimal rounded to two decimal places?

Answer explanation

(2.5)² = 2.5 x 2.5 = 6.25

What is (3.2²)³ as a decimal rounded to two decimal places?

Answer explanation

(3.2²)³ = 3.2^6 = 1073.741824 rounded is 1073.74

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