Workbook Detail
Fact Family Mixed Within 20 Fill Blanks — Set 6
Exercise 1
- OperationPair
- add-sub
- Triple
- 15
- 1
- 16
- Mode
- fill_blanks
- Equations
- {"display":"15 + 1 = __","blank":16,"blankPosition":4,"originalParts":[15,"+",1,"=",16]}
- {"display":"1 + 15 = __","blank":16,"blankPosition":4,"originalParts":[1,"+",15,"=",16]}
- {"display":"__ - 15 = 1","blank":16,"blankPosition":0,"originalParts":[16,"-",15,"=",1]}
- {"display":"16 - __ = 15","blank":1,"blankPosition":2,"originalParts":[16,"-",1,"=",15]}
Exercise 2
- OperationPair
- add-sub
- Triple
- 5
- 9
- 14
- Mode
- fill_blanks
- Equations
- {"display":"5 + 9 = __","blank":14,"blankPosition":4,"originalParts":[5,"+",9,"=",14]}
- {"display":"9 + __ = 14","blank":5,"blankPosition":2,"originalParts":[9,"+",5,"=",14]}
- {"display":"14 - 5 = __","blank":9,"blankPosition":4,"originalParts":[14,"-",5,"=",9]}
- {"display":"14 - 9 = __","blank":5,"blankPosition":4,"originalParts":[14,"-",9,"=",5]}
Exercise 3
- OperationPair
- add-sub
- Triple
- 14
- 19
- 33
- Mode
- fill_blanks
- Equations
- {"display":"14 + 19 = __","blank":33,"blankPosition":4,"originalParts":[14,"+",19,"=",33]}
- {"display":"19 + __ = 33","blank":14,"blankPosition":2,"originalParts":[19,"+",14,"=",33]}
- {"display":"33 - 14 = __","blank":19,"blankPosition":4,"originalParts":[33,"-",14,"=",19]}
- {"display":"__ - 19 = 14","blank":33,"blankPosition":0,"originalParts":[33,"-",19,"=",14]}
Exercise 4
- OperationPair
- add-sub
- Triple
- 18
- 10
- 28
- Mode
- fill_blanks
- Equations
- {"display":"__ + 10 = 28","blank":18,"blankPosition":0,"originalParts":[18,"+",10,"=",28]}
- {"display":"10 + 18 = __","blank":28,"blankPosition":4,"originalParts":[10,"+",18,"=",28]}
- {"display":"28 - __ = 10","blank":18,"blankPosition":2,"originalParts":[28,"-",18,"=",10]}
- {"display":"__ - 10 = 18","blank":28,"blankPosition":0,"originalParts":[28,"-",10,"=",18]}
Exercise 5
- OperationPair
- add-sub
- Triple
- 15
- 11
- 26
- Mode
- fill_blanks
- Equations
- {"display":"__ + 11 = 26","blank":15,"blankPosition":0,"originalParts":[15,"+",11,"=",26]}
- {"display":"11 + 15 = __","blank":26,"blankPosition":4,"originalParts":[11,"+",15,"=",26]}
- {"display":"26 - __ = 11","blank":15,"blankPosition":2,"originalParts":[26,"-",15,"=",11]}
- {"display":"26 - 11 = __","blank":15,"blankPosition":4,"originalParts":[26,"-",11,"=",15]}
Exercise 6
- OperationPair
- add-sub
- Triple
- 5
- 6
- 11
- Mode
- fill_blanks
- Equations
- {"display":"5 + __ = 11","blank":6,"blankPosition":2,"originalParts":[5,"+",6,"=",11]}
- {"display":"__ + 5 = 11","blank":6,"blankPosition":0,"originalParts":[6,"+",5,"=",11]}
- {"display":"11 - 5 = __","blank":6,"blankPosition":4,"originalParts":[11,"-",5,"=",6]}
- {"display":"11 - __ = 5","blank":6,"blankPosition":2,"originalParts":[11,"-",6,"=",5]}
Teaching Notes
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Frequently Asked Questions
How do I use this Fact Family Mixed Within 20 Fill Blanks Math Worksheet worksheet?
Print the worksheet and complete the problems. Each set number generates a unique arrangement. Use the same set number for all students in a class for consistent assessment.
Is there an answer key?
Yes — every worksheet includes a complete answer key. Print it separately or view it on screen.