Workbook Detail
Fact Family Add Sub Within 20 Medium — Set 7
Exercise 1
- OperationPair
- add-sub
- Triple
- 10
- 4
- 14
- Mode
- write_all
- Equations
- {"text":"10 + 4 = 14","parts":[10,"+",4,"=",14]}
- {"text":"4 + 10 = 14","parts":[4,"+",10,"=",14]}
- {"text":"14 - 10 = 4","parts":[14,"-",10,"=",4]}
- {"text":"14 - 4 = 10","parts":[14,"-",4,"=",10]}
Exercise 2
- OperationPair
- add-sub
- Triple
- 8
- 5
- 13
- Mode
- write_all
- Equations
- {"text":"8 + 5 = 13","parts":[8,"+",5,"=",13]}
- {"text":"5 + 8 = 13","parts":[5,"+",8,"=",13]}
- {"text":"13 - 8 = 5","parts":[13,"-",8,"=",5]}
- {"text":"13 - 5 = 8","parts":[13,"-",5,"=",8]}
Exercise 3
- 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 4
- OperationPair
- add-sub
- Triple
- 1
- 5
- 6
- Mode
- write_all
- Equations
- {"text":"1 + 5 = 6","parts":[1,"+",5,"=",6]}
- {"text":"5 + 1 = 6","parts":[5,"+",1,"=",6]}
- {"text":"6 - 1 = 5","parts":[6,"-",1,"=",5]}
- {"text":"6 - 5 = 1","parts":[6,"-",5,"=",1]}
Exercise 5
- OperationPair
- add-sub
- Triple
- 8
- 9
- 17
- Mode
- write_all
- Equations
- {"text":"8 + 9 = 17","parts":[8,"+",9,"=",17]}
- {"text":"9 + 8 = 17","parts":[9,"+",8,"=",17]}
- {"text":"17 - 8 = 9","parts":[17,"-",8,"=",9]}
- {"text":"17 - 9 = 8","parts":[17,"-",9,"=",8]}
Exercise 6
- OperationPair
- add-sub
- Triple
- 10
- 1
- 11
- Mode
- write_all
- Equations
- {"text":"10 + 1 = 11","parts":[10,"+",1,"=",11]}
- {"text":"1 + 10 = 11","parts":[1,"+",10,"=",11]}
- {"text":"11 - 10 = 1","parts":[11,"-",10,"=",1]}
- {"text":"11 - 1 = 10","parts":[11,"-",1,"=",10]}
Teaching Notes
Practice fact family add sub within 20 with free printable worksheets. Uniquely generated — reinforce key math skills with every set.
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