medium Set 7 Form Exercise

Exercise 1

OperationPair
add-sub
Triple
  • 3
  • 9
  • 12
Mode
write_all
Equations
  • {"text":"3 + 9 = 12","parts":[3,"+",9,"=",12]}
  • {"text":"9 + 3 = 12","parts":[9,"+",3,"=",12]}
  • {"text":"12 - 3 = 9","parts":[12,"-",3,"=",9]}
  • {"text":"12 - 9 = 3","parts":[12,"-",9,"=",3]}

Exercise 2

OperationPair
add-sub
Triple
  • 12
  • 3
  • 15
Mode
write_all
Equations
  • {"text":"12 + 3 = 15","parts":[12,"+",3,"=",15]}
  • {"text":"3 + 12 = 15","parts":[3,"+",12,"=",15]}
  • {"text":"15 - 12 = 3","parts":[15,"-",12,"=",3]}
  • {"text":"15 - 3 = 12","parts":[15,"-",3,"=",12]}

Exercise 3

OperationPair
add-sub
Triple
  • 11
  • 4
  • 15
Mode
write_all
Equations
  • {"text":"11 + 4 = 15","parts":[11,"+",4,"=",15]}
  • {"text":"4 + 11 = 15","parts":[4,"+",11,"=",15]}
  • {"text":"15 - 11 = 4","parts":[15,"-",11,"=",4]}
  • {"text":"15 - 4 = 11","parts":[15,"-",4,"=",11]}

Exercise 4

OperationPair
add-sub
Triple
  • 5
  • 19
  • 24
Mode
write_all
Equations
  • {"text":"5 + 19 = 24","parts":[5,"+",19,"=",24]}
  • {"text":"19 + 5 = 24","parts":[19,"+",5,"=",24]}
  • {"text":"24 - 5 = 19","parts":[24,"-",5,"=",19]}
  • {"text":"24 - 19 = 5","parts":[24,"-",19,"=",5]}

Exercise 5

OperationPair
add-sub
Triple
  • 15
  • 5
  • 20
Mode
write_all
Equations
  • {"text":"15 + 5 = 20","parts":[15,"+",5,"=",20]}
  • {"text":"5 + 15 = 20","parts":[5,"+",15,"=",20]}
  • {"text":"20 - 15 = 5","parts":[20,"-",15,"=",5]}
  • {"text":"20 - 5 = 15","parts":[20,"-",5,"=",15]}

Exercise 6

OperationPair
add-sub
Triple
  • 18
  • 1
  • 19
Mode
write_all
Equations
  • {"text":"18 + 1 = 19","parts":[18,"+",1,"=",19]}
  • {"text":"1 + 18 = 19","parts":[1,"+",18,"=",19]}
  • {"text":"19 - 18 = 1","parts":[19,"-",18,"=",1]}
  • {"text":"19 - 1 = 18","parts":[19,"-",1,"=",18]}