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- Decide whether each number is an element of a set defined by an inequality, using the element symbol.
- Decide whether each description gives a set, and say which membership question is unclear.
- Hannah rolls a die 5 times and records the set of numbers that came up: answer questions about it.
- Decide whether two numbers are elements of a set given by a formula, and explain.
- Find the value that makes a two-item set have exactly one element.
- List the elements of a set that contains other sets, and count them.
- Find when a set of three powers of x has exactly one element, and when it has exactly two.
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Elements and membership: the lesson ›More Chapter 1 worksheets: Real numbers, expressions and properties
- 1.1Elements and membership
- 1.2Writing sets: roster, rule and the empty set
- 1.3Commutative, associative and distributive properties
- 1.4Identity and inverse elements
- 1.5Closure
- 1.6Interpreting the parts of an expression
- 1.7Units, quantities and a sensible level of accuracy
- 1.8Estimating a huge quantity from small facts