CanadaON
Grade 9

# 1.10 Number sets

## Interactive practice questions

Is the following statement true or false?

$3$3$\in$$\left\{2,4,5,8\right\}{2,4,5,8} True A False B True A False B Medium Less than a minute Sign up to try all questions Is the following statement true or false? 11\in$$\left\{9,8,6,5,1\right\}${9,8,6,5,1}

Is the following statement true or false?

$7$7$\notin$$\left\{6,5,4,2\right\}{6,5,4,2} List the elements in the set {xx\mid$$x$x is a natural number less than $5$5}.

### Outcomes

#### 9.B1.2

Describe how various subsets of a number system are defined, and describe similarities and differences between these subsets.

#### 9.B1.3

Use patterns and number relationships to explain density, infinity, and limit as they relate to number sets.