Workbook Detail
Fact Family Mixed Within 20 Fill Blanks — Set 2
Exercise 1
- OperationPair
- add-sub
- Triple
- 11
- 19
- 30
- Mode
- fill_blanks
- Equations
- {"display":"__ + 19 = 30","blank":11,"blankPosition":0,"originalParts":[11,"+",19,"=",30]}
- {"display":"__ + 11 = 30","blank":19,"blankPosition":0,"originalParts":[19,"+",11,"=",30]}
- {"display":"30 - 11 = __","blank":19,"blankPosition":4,"originalParts":[30,"-",11,"=",19]}
- {"display":"__ - 19 = 11","blank":30,"blankPosition":0,"originalParts":[30,"-",19,"=",11]}
Exercise 2
- OperationPair
- add-sub
- Triple
- 7
- 10
- 17
- Mode
- fill_blanks
- Equations
- {"display":"7 + __ = 17","blank":10,"blankPosition":2,"originalParts":[7,"+",10,"=",17]}
- {"display":"__ + 7 = 17","blank":10,"blankPosition":0,"originalParts":[10,"+",7,"=",17]}
- {"display":"__ - 7 = 10","blank":17,"blankPosition":0,"originalParts":[17,"-",7,"=",10]}
- {"display":"17 - __ = 7","blank":10,"blankPosition":2,"originalParts":[17,"-",10,"=",7]}
Exercise 3
- OperationPair
- add-sub
- Triple
- 14
- 20
- 34
- Mode
- fill_blanks
- Equations
- {"display":"14 + __ = 34","blank":20,"blankPosition":2,"originalParts":[14,"+",20,"=",34]}
- {"display":"20 + 14 = __","blank":34,"blankPosition":4,"originalParts":[20,"+",14,"=",34]}
- {"display":"34 - __ = 20","blank":14,"blankPosition":2,"originalParts":[34,"-",14,"=",20]}
- {"display":"34 - __ = 14","blank":20,"blankPosition":2,"originalParts":[34,"-",20,"=",14]}
Exercise 4
- OperationPair
- add-sub
- Triple
- 1
- 17
- 18
- Mode
- fill_blanks
- Equations
- {"display":"1 + 17 = __","blank":18,"blankPosition":4,"originalParts":[1,"+",17,"=",18]}
- {"display":"__ + 1 = 18","blank":17,"blankPosition":0,"originalParts":[17,"+",1,"=",18]}
- {"display":"__ - 1 = 17","blank":18,"blankPosition":0,"originalParts":[18,"-",1,"=",17]}
- {"display":"18 - 17 = __","blank":1,"blankPosition":4,"originalParts":[18,"-",17,"=",1]}
Exercise 5
- OperationPair
- add-sub
- Triple
- 14
- 11
- 25
- Mode
- fill_blanks
- Equations
- {"display":"14 + 11 = __","blank":25,"blankPosition":4,"originalParts":[14,"+",11,"=",25]}
- {"display":"11 + __ = 25","blank":14,"blankPosition":2,"originalParts":[11,"+",14,"=",25]}
- {"display":"__ - 14 = 11","blank":25,"blankPosition":0,"originalParts":[25,"-",14,"=",11]}
- {"display":"25 - 11 = __","blank":14,"blankPosition":4,"originalParts":[25,"-",11,"=",14]}
Exercise 6
- OperationPair
- add-sub
- Triple
- 5
- 15
- 20
- Mode
- fill_blanks
- Equations
- {"display":"5 + __ = 20","blank":15,"blankPosition":2,"originalParts":[5,"+",15,"=",20]}
- {"display":"15 + __ = 20","blank":5,"blankPosition":2,"originalParts":[15,"+",5,"=",20]}
- {"display":"__ - 5 = 15","blank":20,"blankPosition":0,"originalParts":[20,"-",5,"=",15]}
- {"display":"__ - 15 = 5","blank":20,"blankPosition":0,"originalParts":[20,"-",15,"=",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.