Workbook Detail
Fact Family Add Sub Within 20 Medium — Set 4
Exercise 1
- OperationPair
- add-sub
- Triple
- 8
- 6
- 14
- Mode
- write_all
- Equations
- {"text":"8 + 6 = 14","parts":[8,"+",6,"=",14]}
- {"text":"6 + 8 = 14","parts":[6,"+",8,"=",14]}
- {"text":"14 - 8 = 6","parts":[14,"-",8,"=",6]}
- {"text":"14 - 6 = 8","parts":[14,"-",6,"=",8]}
Exercise 2
- OperationPair
- add-sub
- Triple
- 4
- 8
- 12
- Mode
- write_all
- Equations
- {"text":"4 + 8 = 12","parts":[4,"+",8,"=",12]}
- {"text":"8 + 4 = 12","parts":[8,"+",4,"=",12]}
- {"text":"12 - 4 = 8","parts":[12,"-",4,"=",8]}
- {"text":"12 - 8 = 4","parts":[12,"-",8,"=",4]}
Exercise 3
- OperationPair
- add-sub
- Triple
- 3
- 3
- 6
- Mode
- write_all
- Equations
- {"text":"3 + 3 = 6","parts":[3,"+",3,"=",6]}
- {"text":"6 - 3 = 3","parts":[6,"-",3,"=",3]}
Exercise 4
- OperationPair
- add-sub
- Triple
- 9
- 8
- 17
- Mode
- write_all
- Equations
- {"text":"9 + 8 = 17","parts":[9,"+",8,"=",17]}
- {"text":"8 + 9 = 17","parts":[8,"+",9,"=",17]}
- {"text":"17 - 9 = 8","parts":[17,"-",9,"=",8]}
- {"text":"17 - 8 = 9","parts":[17,"-",8,"=",9]}
Exercise 5
- OperationPair
- add-sub
- Triple
- 8
- 3
- 11
- Mode
- write_all
- Equations
- {"text":"8 + 3 = 11","parts":[8,"+",3,"=",11]}
- {"text":"3 + 8 = 11","parts":[3,"+",8,"=",11]}
- {"text":"11 - 8 = 3","parts":[11,"-",8,"=",3]}
- {"text":"11 - 3 = 8","parts":[11,"-",3,"=",8]}
Exercise 6
- OperationPair
- add-sub
- Triple
- 10
- 2
- 12
- Mode
- write_all
- Equations
- {"text":"10 + 2 = 12","parts":[10,"+",2,"=",12]}
- {"text":"2 + 10 = 12","parts":[2,"+",10,"=",12]}
- {"text":"12 - 10 = 2","parts":[12,"-",10,"=",2]}
- {"text":"12 - 2 = 10","parts":[12,"-",2,"=",10]}
Teaching Notes
Practice fact family add sub within 20 with free printable worksheets. Uniquely generated — reinforce key math skills with every set.
Frequently Asked Questions
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