Q2 Final Math Practice

Front

What is the approximate value of \( \sqrt{80} \)?

Back

The approximate value of \( \sqrt{80} \) is 8.9.

Front

What is the approximate value of \( \sqrt{11} \)?

Back

The approximate value of \( \sqrt{11} \) is 3.2.

Front

How do you convert the repeating decimal \( 0.\overline{81} \) to a fraction?

Back

To convert \( 0.\overline{81} \) to a fraction, it is \( \frac{81}{99} \).

Front

How do you convert the repeating decimal \( 0.\overline{17} \) to a fraction?

Back

To convert \( 0.\overline{17} \) to a fraction, it is \( \frac{17}{99} \).

Front

What is the cube root of 125?

Back

The cube root of 125 is 5.

Front

What is the definition of a square root?

Back

A square root of a number \( x \) is a number \( y \) such that \( y^2 = x \).

Front

What is the definition of a cube root?

Back

A cube root of a number \( x \) is a number \( y \) such that \( y^3 = x \).

Front

How do you approximate square roots of non-perfect squares?

Back

To approximate square roots of non-perfect squares, you can use a calculator or estimate by finding two perfect squares between which the number lies.

Front

What is the process to convert a repeating decimal to a fraction?

Back

To convert a repeating decimal to a fraction, set the decimal equal to a variable, multiply by a power of 10 to shift the decimal, and then solve for the variable.

Front

What is the significance of the number 99 in converting repeating decimals to fractions?

Back

The number 99 is used in the denominator when converting a two-digit repeating decimal to a fraction, as it represents the two repeating digits.