Workbook Detail
Fact Family Mixed Within 20 Fill Blanks — Set 3
Exercise 1
- OperationPair
- add-sub
- Triple
- 16
- 2
- 18
- Mode
- fill_blanks
- Equations
- {"display":"__ + 2 = 18","blank":16,"blankPosition":0,"originalParts":[16,"+",2,"=",18]}
- {"display":"2 + 16 = __","blank":18,"blankPosition":4,"originalParts":[2,"+",16,"=",18]}
- {"display":"18 - 16 = __","blank":2,"blankPosition":4,"originalParts":[18,"-",16,"=",2]}
- {"display":"18 - __ = 16","blank":2,"blankPosition":2,"originalParts":[18,"-",2,"=",16]}
Exercise 2
- OperationPair
- add-sub
- Triple
- 7
- 9
- 16
- Mode
- fill_blanks
- Equations
- {"display":"7 + 9 = __","blank":16,"blankPosition":4,"originalParts":[7,"+",9,"=",16]}
- {"display":"9 + 7 = __","blank":16,"blankPosition":4,"originalParts":[9,"+",7,"=",16]}
- {"display":"__ - 7 = 9","blank":16,"blankPosition":0,"originalParts":[16,"-",7,"=",9]}
- {"display":"16 - 9 = __","blank":7,"blankPosition":4,"originalParts":[16,"-",9,"=",7]}
Exercise 3
- OperationPair
- add-sub
- Triple
- 7
- 2
- 9
- Mode
- fill_blanks
- Equations
- {"display":"7 + __ = 9","blank":2,"blankPosition":2,"originalParts":[7,"+",2,"=",9]}
- {"display":"__ + 7 = 9","blank":2,"blankPosition":0,"originalParts":[2,"+",7,"=",9]}
- {"display":"__ - 7 = 2","blank":9,"blankPosition":0,"originalParts":[9,"-",7,"=",2]}
- {"display":"__ - 2 = 7","blank":9,"blankPosition":0,"originalParts":[9,"-",2,"=",7]}
Exercise 4
- OperationPair
- add-sub
- Triple
- 16
- 11
- 27
- Mode
- fill_blanks
- Equations
- {"display":"16 + 11 = __","blank":27,"blankPosition":4,"originalParts":[16,"+",11,"=",27]}
- {"display":"11 + __ = 27","blank":16,"blankPosition":2,"originalParts":[11,"+",16,"=",27]}
- {"display":"27 - __ = 11","blank":16,"blankPosition":2,"originalParts":[27,"-",16,"=",11]}
- {"display":"27 - __ = 16","blank":11,"blankPosition":2,"originalParts":[27,"-",11,"=",16]}
Exercise 5
- OperationPair
- add-sub
- Triple
- 19
- 5
- 24
- Mode
- fill_blanks
- Equations
- {"display":"__ + 5 = 24","blank":19,"blankPosition":0,"originalParts":[19,"+",5,"=",24]}
- {"display":"__ + 19 = 24","blank":5,"blankPosition":0,"originalParts":[5,"+",19,"=",24]}
- {"display":"__ - 19 = 5","blank":24,"blankPosition":0,"originalParts":[24,"-",19,"=",5]}
- {"display":"__ - 5 = 19","blank":24,"blankPosition":0,"originalParts":[24,"-",5,"=",19]}
Exercise 6
- OperationPair
- add-sub
- Triple
- 10
- 14
- 24
- Mode
- fill_blanks
- Equations
- {"display":"10 + 14 = __","blank":24,"blankPosition":4,"originalParts":[10,"+",14,"=",24]}
- {"display":"__ + 10 = 24","blank":14,"blankPosition":0,"originalParts":[14,"+",10,"=",24]}
- {"display":"__ - 10 = 14","blank":24,"blankPosition":0,"originalParts":[24,"-",10,"=",14]}
- {"display":"24 - 14 = __","blank":10,"blankPosition":4,"originalParts":[24,"-",14,"=",10]}
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.