Workbook Detail
Fact Family Add Sub Within 20 Write All — Set 4
Exercise 1
- OperationPair
- add-sub
- Triple
- 14
- 11
- 25
- Mode
- write_all
- Equations
- {"text":"14 + 11 = 25","parts":[14,"+",11,"=",25]}
- {"text":"11 + 14 = 25","parts":[11,"+",14,"=",25]}
- {"text":"25 - 14 = 11","parts":[25,"-",14,"=",11]}
- {"text":"25 - 11 = 14","parts":[25,"-",11,"=",14]}
Exercise 2
- OperationPair
- add-sub
- Triple
- 7
- 4
- 11
- Mode
- write_all
- Equations
- {"text":"7 + 4 = 11","parts":[7,"+",4,"=",11]}
- {"text":"4 + 7 = 11","parts":[4,"+",7,"=",11]}
- {"text":"11 - 7 = 4","parts":[11,"-",7,"=",4]}
- {"text":"11 - 4 = 7","parts":[11,"-",4,"=",7]}
Exercise 3
- OperationPair
- add-sub
- Triple
- 12
- 17
- 29
- Mode
- write_all
- Equations
- {"text":"12 + 17 = 29","parts":[12,"+",17,"=",29]}
- {"text":"17 + 12 = 29","parts":[17,"+",12,"=",29]}
- {"text":"29 - 12 = 17","parts":[29,"-",12,"=",17]}
- {"text":"29 - 17 = 12","parts":[29,"-",17,"=",12]}
Exercise 4
- OperationPair
- add-sub
- Triple
- 14
- 14
- 28
- Mode
- write_all
- Equations
- {"text":"14 + 14 = 28","parts":[14,"+",14,"=",28]}
- {"text":"28 - 14 = 14","parts":[28,"-",14,"=",14]}
Exercise 5
- OperationPair
- add-sub
- Triple
- 17
- 4
- 21
- Mode
- write_all
- Equations
- {"text":"17 + 4 = 21","parts":[17,"+",4,"=",21]}
- {"text":"4 + 17 = 21","parts":[4,"+",17,"=",21]}
- {"text":"21 - 17 = 4","parts":[21,"-",17,"=",4]}
- {"text":"21 - 4 = 17","parts":[21,"-",4,"=",17]}
Exercise 6
- OperationPair
- add-sub
- Triple
- 10
- 5
- 15
- Mode
- write_all
- Equations
- {"text":"10 + 5 = 15","parts":[10,"+",5,"=",15]}
- {"text":"5 + 10 = 15","parts":[5,"+",10,"=",15]}
- {"text":"15 - 10 = 5","parts":[15,"-",10,"=",5]}
- {"text":"15 - 5 = 10","parts":[15,"-",5,"=",10]}
Teaching Notes
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