Workbook Detail
Fact Family Add Sub Within 20 Easy — Set 1
Exercise 1
- OperationPair
- add-sub
- Triple
- 3
- 5
- 8
- Mode
- write_all
- Equations
- {"text":"3 + 5 = 8","parts":[3,"+",5,"=",8]}
- {"text":"5 + 3 = 8","parts":[5,"+",3,"=",8]}
- {"text":"8 - 3 = 5","parts":[8,"-",3,"=",5]}
- {"text":"8 - 5 = 3","parts":[8,"-",5,"=",3]}
Exercise 2
- OperationPair
- add-sub
- Triple
- 2
- 6
- 8
- Mode
- write_all
- Equations
- {"text":"2 + 6 = 8","parts":[2,"+",6,"=",8]}
- {"text":"6 + 2 = 8","parts":[6,"+",2,"=",8]}
- {"text":"8 - 2 = 6","parts":[8,"-",2,"=",6]}
- {"text":"8 - 6 = 2","parts":[8,"-",6,"=",2]}
Exercise 3
- OperationPair
- add-sub
- Triple
- 10
- 3
- 13
- Mode
- write_all
- Equations
- {"text":"10 + 3 = 13","parts":[10,"+",3,"=",13]}
- {"text":"3 + 10 = 13","parts":[3,"+",10,"=",13]}
- {"text":"13 - 10 = 3","parts":[13,"-",10,"=",3]}
- {"text":"13 - 3 = 10","parts":[13,"-",3,"=",10]}
Exercise 4
- OperationPair
- add-sub
- Triple
- 7
- 7
- 14
- Mode
- write_all
- Equations
- {"text":"7 + 7 = 14","parts":[7,"+",7,"=",14]}
- {"text":"14 - 7 = 7","parts":[14,"-",7,"=",7]}
Exercise 5
- OperationPair
- add-sub
- Triple
- 7
- 2
- 9
- Mode
- write_all
- Equations
- {"text":"7 + 2 = 9","parts":[7,"+",2,"=",9]}
- {"text":"2 + 7 = 9","parts":[2,"+",7,"=",9]}
- {"text":"9 - 7 = 2","parts":[9,"-",7,"=",2]}
- {"text":"9 - 2 = 7","parts":[9,"-",2,"=",7]}
Exercise 6
- OperationPair
- add-sub
- Triple
- 4
- 3
- 7
- Mode
- write_all
- Equations
- {"text":"4 + 3 = 7","parts":[4,"+",3,"=",7]}
- {"text":"3 + 4 = 7","parts":[3,"+",4,"=",7]}
- {"text":"7 - 4 = 3","parts":[7,"-",4,"=",3]}
- {"text":"7 - 3 = 4","parts":[7,"-",3,"=",4]}
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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