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1.01 The real number system

Interactive practice questions

Which of the following is the set of all integers?

$\left\{0,1,2,3,\ldots\right\}${0,1,2,3,}

A

$\left\{\ldots,-3,-2,-1,0,1,2,3,\ldots\right\}${,3,2,1,0,1,2,3,}

B

$\left\{1,2,3,\ldots\right\}${1,2,3,}

C

$\left\{\ldots,-3,-2,-1,0\right\}${,3,2,1,0}

D
Easy
< 1min

Answer the following questions about whole numbers.

Easy
< 1min

Fill in the blank so that the resulting statement is true.

Easy
< 1min

Using the diagram, determine whether the following statement is true or false:

$\sqrt{13}$13 is a rational number.

Medium
< 1min
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Outcomes

8.NS.A.1

Know that real numbers that are not rational are called irrational (e.g., π, √2, etc.). Understand informally that every number has a decimal expansion; for rational numbers show that the decimal expansion repeats eventually or terminates, and convert a decimal expansion which repeats eventually or terminates into a rational number.

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