expert Set 9 Form Exercise

Exercise 1

OperationPair
add-sub
Triple
  • 1
  • 3
  • 4
Mode
write_all
Equations
  • {"text":"1 + 3 = 4","parts":[1,"+",3,"=",4]}
  • {"text":"3 + 1 = 4","parts":[3,"+",1,"=",4]}
  • {"text":"4 - 1 = 3","parts":[4,"-",1,"=",3]}
  • {"text":"4 - 3 = 1","parts":[4,"-",3,"=",1]}

Exercise 2

OperationPair
add-sub
Triple
  • 3
  • 3
  • 6
Mode
write_all
Equations
  • {"text":"3 + 3 = 6","parts":[3,"+",3,"=",6]}
  • {"text":"6 - 3 = 3","parts":[6,"-",3,"=",3]}

Exercise 3

OperationPair
add-sub
Triple
  • 7
  • 9
  • 16
Mode
write_all
Equations
  • {"text":"7 + 9 = 16","parts":[7,"+",9,"=",16]}
  • {"text":"9 + 7 = 16","parts":[9,"+",7,"=",16]}
  • {"text":"16 - 7 = 9","parts":[16,"-",7,"=",9]}
  • {"text":"16 - 9 = 7","parts":[16,"-",9,"=",7]}

Exercise 4

OperationPair
add-sub
Triple
  • 10
  • 2
  • 12
Mode
write_all
Equations
  • {"text":"10 + 2 = 12","parts":[10,"+",2,"=",12]}
  • {"text":"2 + 10 = 12","parts":[2,"+",10,"=",12]}
  • {"text":"12 - 10 = 2","parts":[12,"-",10,"=",2]}
  • {"text":"12 - 2 = 10","parts":[12,"-",2,"=",10]}

Exercise 5

OperationPair
add-sub
Triple
  • 7
  • 1
  • 8
Mode
write_all
Equations
  • {"text":"7 + 1 = 8","parts":[7,"+",1,"=",8]}
  • {"text":"1 + 7 = 8","parts":[1,"+",7,"=",8]}
  • {"text":"8 - 7 = 1","parts":[8,"-",7,"=",1]}
  • {"text":"8 - 1 = 7","parts":[8,"-",1,"=",7]}

Exercise 6

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