Real Numbers

A repeating decimal (like 4.7777...) is what type of number?

• Rational 

• Irrational 

A non-ending, non-repeating decimal is which type of number?

• Rational 

• Irrational

Which of the following is rational?

• .211232112421125. . . .

• π

• √25

• √12

If the area of a square is 49, what is the length of each side?

• 8

• 15

• 1/2

• 7

The √20 is between which two integers?

• 2 & 3

• 3 & 4

• 4 & 5

• 5 & 6

Which is the best estimate of the square root of 63?

• 7.1

• 7.3

• 7.5

• 7.9

Simplify (-5.7)⁰

• 1

• 0

• -1

• -5.7

Which is greater,  2654⁰ or 5⁰?

• 2654⁰

• 5⁰

• They are the same

• Zero is greater

How would you write 4.3756 x 10⁴ in standard form?

• 437,560,000

• 0.00043756

• 43,756

• 4,3756

How would you write 0.0005 in scientific notation?

• 50 x 10^-5

• 5 x 10^-4

• 5 x 10³

• .5 x 10³