Workbook Detail
Fact Family Add Sub Within 20 Fill Blanks — Set 1
Exercise 1
- OperationPair
- add-sub
- Triple
- 16
- 8
- 24
- Mode
- fill_blanks
- Equations
- {"display":"__ + 8 = 24","blank":16,"blankPosition":0,"originalParts":[16,"+",8,"=",24]}
- {"display":"8 + __ = 24","blank":16,"blankPosition":2,"originalParts":[8,"+",16,"=",24]}
- {"display":"24 - __ = 8","blank":16,"blankPosition":2,"originalParts":[24,"-",16,"=",8]}
- {"display":"24 - 8 = __","blank":16,"blankPosition":4,"originalParts":[24,"-",8,"=",16]}
Exercise 2
- OperationPair
- add-sub
- Triple
- 12
- 6
- 18
- Mode
- fill_blanks
- Equations
- {"display":"12 + __ = 18","blank":6,"blankPosition":2,"originalParts":[12,"+",6,"=",18]}
- {"display":"6 + 12 = __","blank":18,"blankPosition":4,"originalParts":[6,"+",12,"=",18]}
- {"display":"__ - 12 = 6","blank":18,"blankPosition":0,"originalParts":[18,"-",12,"=",6]}
- {"display":"18 - 6 = __","blank":12,"blankPosition":4,"originalParts":[18,"-",6,"=",12]}
Exercise 3
- OperationPair
- add-sub
- Triple
- 16
- 3
- 19
- Mode
- fill_blanks
- Equations
- {"display":"__ + 3 = 19","blank":16,"blankPosition":0,"originalParts":[16,"+",3,"=",19]}
- {"display":"__ + 16 = 19","blank":3,"blankPosition":0,"originalParts":[3,"+",16,"=",19]}
- {"display":"19 - 16 = __","blank":3,"blankPosition":4,"originalParts":[19,"-",16,"=",3]}
- {"display":"19 - 3 = __","blank":16,"blankPosition":4,"originalParts":[19,"-",3,"=",16]}
Exercise 4
- OperationPair
- add-sub
- Triple
- 6
- 13
- 19
- Mode
- fill_blanks
- Equations
- {"display":"6 + 13 = __","blank":19,"blankPosition":4,"originalParts":[6,"+",13,"=",19]}
- {"display":"__ + 6 = 19","blank":13,"blankPosition":0,"originalParts":[13,"+",6,"=",19]}
- {"display":"19 - __ = 13","blank":6,"blankPosition":2,"originalParts":[19,"-",6,"=",13]}
- {"display":"19 - 13 = __","blank":6,"blankPosition":4,"originalParts":[19,"-",13,"=",6]}
Exercise 5
- OperationPair
- add-sub
- Triple
- 6
- 13
- 19
- Mode
- fill_blanks
- Equations
- {"display":"6 + 13 = __","blank":19,"blankPosition":4,"originalParts":[6,"+",13,"=",19]}
- {"display":"13 + 6 = __","blank":19,"blankPosition":4,"originalParts":[13,"+",6,"=",19]}
- {"display":"19 - __ = 13","blank":6,"blankPosition":2,"originalParts":[19,"-",6,"=",13]}
- {"display":"19 - 13 = __","blank":6,"blankPosition":4,"originalParts":[19,"-",13,"=",6]}
Exercise 6
- OperationPair
- add-sub
- Triple
- 16
- 3
- 19
- Mode
- fill_blanks
- Equations
- {"display":"__ + 3 = 19","blank":16,"blankPosition":0,"originalParts":[16,"+",3,"=",19]}
- {"display":"__ + 16 = 19","blank":3,"blankPosition":0,"originalParts":[3,"+",16,"=",19]}
- {"display":"19 - 16 = __","blank":3,"blankPosition":4,"originalParts":[19,"-",16,"=",3]}
- {"display":"19 - __ = 16","blank":3,"blankPosition":2,"originalParts":[19,"-",3,"=",16]}
Teaching Notes
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Frequently Asked Questions
How do I use this Fact Family Add Sub 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?
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