UK Secondary (7-11)
Classification of Numbers

## 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

$\left\{0,1,2,3,\ldots\right\}${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
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Height above sea level is expressed as a positive quantity. Which set of numbers is the most appropriate for describing the position of a submarine relative to sea level?

Answer the following questions about whole numbers.

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