8th Math Sem1 REVIEW 2021

To which real number set do the following real numbers belong?

• Irrational Numbers

• Natural Numbers

• Rational Numbers

• Integers

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

Simplify the expression using exponents.

• 81⁸

• 9¹⁵

• 9⁸

• 81¹⁵

Write the decimal as a fraction in simplest form

• 
• 
• 
• 

Using exponents, what is the simplified form of the expression (2⁴)⁷

• 2³

• 14²⁸

• 2²⁸

• 2¹¹

Using exponents, what is the simplified form of this expression?

• 5⁹

• 1⁵

• 5¹⁴

• 5⁵

What is the value of 18⁰?

• 18

• 0

• 1

• -18

How do you write the standard number 0.00095 in scientific notation?

• 9.5 x 10^-3

• 9.5 x 10^-5

• 9.5 x 10^-4

• 9.5 x 10^-6

Write the standard number 6,267,000 in scientific notation.

• 62.67 x 10⁶

• 6.267 x 10⁶

• 6.267 x 10⁴

• 6.267 x 10⁷

How do you write 8.7 x 10^-1 in standard form?

• 0.87

• 8.7

• 87

• 0.087