Workbook Detail
Fact Family Add Sub Within 20 Fill Blanks — Set 6
Exercise 1
- OperationPair
- add-sub
- Triple
- 8
- 6
- 14
- Mode
- fill_blanks
- Equations
- {"display":"8 + __ = 14","blank":6,"blankPosition":2,"originalParts":[8,"+",6,"=",14]}
- {"display":"6 + 8 = __","blank":14,"blankPosition":4,"originalParts":[6,"+",8,"=",14]}
- {"display":"__ - 8 = 6","blank":14,"blankPosition":0,"originalParts":[14,"-",8,"=",6]}
- {"display":"__ - 6 = 8","blank":14,"blankPosition":0,"originalParts":[14,"-",6,"=",8]}
Exercise 2
- OperationPair
- add-sub
- Triple
- 13
- 14
- 27
- Mode
- fill_blanks
- Equations
- {"display":"13 + 14 = __","blank":27,"blankPosition":4,"originalParts":[13,"+",14,"=",27]}
- {"display":"__ + 13 = 27","blank":14,"blankPosition":0,"originalParts":[14,"+",13,"=",27]}
- {"display":"__ - 13 = 14","blank":27,"blankPosition":0,"originalParts":[27,"-",13,"=",14]}
- {"display":"27 - 14 = __","blank":13,"blankPosition":4,"originalParts":[27,"-",14,"=",13]}
Exercise 3
- OperationPair
- add-sub
- Triple
- 6
- 15
- 21
- Mode
- fill_blanks
- Equations
- {"display":"6 + 15 = __","blank":21,"blankPosition":4,"originalParts":[6,"+",15,"=",21]}
- {"display":"__ + 6 = 21","blank":15,"blankPosition":0,"originalParts":[15,"+",6,"=",21]}
- {"display":"__ - 6 = 15","blank":21,"blankPosition":0,"originalParts":[21,"-",6,"=",15]}
- {"display":"21 - __ = 6","blank":15,"blankPosition":2,"originalParts":[21,"-",15,"=",6]}
Exercise 4
- OperationPair
- add-sub
- Triple
- 13
- 10
- 23
- Mode
- fill_blanks
- Equations
- {"display":"__ + 10 = 23","blank":13,"blankPosition":0,"originalParts":[13,"+",10,"=",23]}
- {"display":"10 + __ = 23","blank":13,"blankPosition":2,"originalParts":[10,"+",13,"=",23]}
- {"display":"23 - __ = 10","blank":13,"blankPosition":2,"originalParts":[23,"-",13,"=",10]}
- {"display":"23 - 10 = __","blank":13,"blankPosition":4,"originalParts":[23,"-",10,"=",13]}
Exercise 5
- OperationPair
- add-sub
- Triple
- 18
- 10
- 28
- Mode
- fill_blanks
- Equations
- {"display":"__ + 10 = 28","blank":18,"blankPosition":0,"originalParts":[18,"+",10,"=",28]}
- {"display":"__ + 18 = 28","blank":10,"blankPosition":0,"originalParts":[10,"+",18,"=",28]}
- {"display":"28 - __ = 10","blank":18,"blankPosition":2,"originalParts":[28,"-",18,"=",10]}
- {"display":"28 - __ = 18","blank":10,"blankPosition":2,"originalParts":[28,"-",10,"=",18]}
Exercise 6
- OperationPair
- add-sub
- Triple
- 12
- 13
- 25
- Mode
- fill_blanks
- Equations
- {"display":"12 + 13 = __","blank":25,"blankPosition":4,"originalParts":[12,"+",13,"=",25]}
- {"display":"13 + 12 = __","blank":25,"blankPosition":4,"originalParts":[13,"+",12,"=",25]}
- {"display":"25 - 12 = __","blank":13,"blankPosition":4,"originalParts":[25,"-",12,"=",13]}
- {"display":"25 - __ = 12","blank":13,"blankPosition":2,"originalParts":[25,"-",13,"=",12]}
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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