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- Given a reciprocal, find the number, its additive inverse, and a sum.
- Fix Jack's way of finding the reciprocal of a mixed number.
- Test Owen's claim about an additive inverse, then find the correct one.
- Rewrite a chain of divisions as one product, then evaluate.
- Solve equations, naming the inverse used at each step.
- Decide if each statement holds for every real number, and give a counterexample if not.
- Explain why negative one times a equals negative a, giving the property for each step.
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Identity and inverse elements: 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