hard Set 1 Form Exercise

Exercise 1

OperationPair
add-sub
Triple
  • 1
  • 8
  • 9
Mode
write_all
Equations
  • {"text":"1 + 8 = 9","parts":[1,"+",8,"=",9]}
  • {"text":"8 + 1 = 9","parts":[8,"+",1,"=",9]}
  • {"text":"9 - 1 = 8","parts":[9,"-",1,"=",8]}
  • {"text":"9 - 8 = 1","parts":[9,"-",8,"=",1]}

Exercise 2

OperationPair
add-sub
Triple
  • 8
  • 4
  • 12
Mode
write_all
Equations
  • {"text":"8 + 4 = 12","parts":[8,"+",4,"=",12]}
  • {"text":"4 + 8 = 12","parts":[4,"+",8,"=",12]}
  • {"text":"12 - 8 = 4","parts":[12,"-",8,"=",4]}
  • {"text":"12 - 4 = 8","parts":[12,"-",4,"=",8]}

Exercise 3

OperationPair
add-sub
Triple
  • 4
  • 10
  • 14
Mode
write_all
Equations
  • {"text":"4 + 10 = 14","parts":[4,"+",10,"=",14]}
  • {"text":"10 + 4 = 14","parts":[10,"+",4,"=",14]}
  • {"text":"14 - 4 = 10","parts":[14,"-",4,"=",10]}
  • {"text":"14 - 10 = 4","parts":[14,"-",10,"=",4]}

Exercise 4

OperationPair
add-sub
Triple
  • 6
  • 7
  • 13
Mode
write_all
Equations
  • {"text":"6 + 7 = 13","parts":[6,"+",7,"=",13]}
  • {"text":"7 + 6 = 13","parts":[7,"+",6,"=",13]}
  • {"text":"13 - 6 = 7","parts":[13,"-",6,"=",7]}
  • {"text":"13 - 7 = 6","parts":[13,"-",7,"=",6]}

Exercise 5

OperationPair
add-sub
Triple
  • 5
  • 9
  • 14
Mode
write_all
Equations
  • {"text":"5 + 9 = 14","parts":[5,"+",9,"=",14]}
  • {"text":"9 + 5 = 14","parts":[9,"+",5,"=",14]}
  • {"text":"14 - 5 = 9","parts":[14,"-",5,"=",9]}
  • {"text":"14 - 9 = 5","parts":[14,"-",9,"=",5]}

Exercise 6

OperationPair
add-sub
Triple
  • 2
  • 9
  • 11
Mode
write_all
Equations
  • {"text":"2 + 9 = 11","parts":[2,"+",9,"=",11]}
  • {"text":"9 + 2 = 11","parts":[9,"+",2,"=",11]}
  • {"text":"11 - 2 = 9","parts":[11,"-",2,"=",9]}
  • {"text":"11 - 9 = 2","parts":[11,"-",9,"=",2]}