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What's on the worksheet
- Word problem: how many bike lock codes meet each condition.
- Count arrangements of the letters of PIRATES with vowel and consonant conditions.
- Word problem: ways 6 friends, two couples among them, can sit in a row.
- Word problem: arranging 6 books in a window with two placement rules.
- Word problem: seating Red and Blue debate teams so the teams alternate.
- Word problem: a row for a family photo where the grandmother has a required place.
Teach it first
The free lesson teaches it with worked examples and practice problems.
Counting with restrictions: the lesson ›More Chapter 11 worksheets: Counting
- 11.1Cardinality of a finite set
- 11.2Venn diagrams and counting a union
- 11.3Arrangements and factorials
- 11.4Permutations
- 11.5Combinations
- 11.6Counting with restrictions
- 11.7Pascal's triangle
- 11.8The binomial theorem