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Subtraction to 20 with Missing Addend
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Delimiter between question and answer:

Tips:

  • No column headers.
  • Each line maps to a question.
  • If the delimiter is used in a question, the question should be surrounded by double quotes: "My, question","My, answer"
  • The first answer in the multiple choice question must be the correct answer.






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18-_=9
9
_-6=6
12
20-_=14
6
11-_=3
8
17-_=9
8
_-5=2
7
_-2=13
15
19-_=10
9
9-_=3
6
20-_=13
7
_-3=4
7
16-_=11
5
14-_=10
4
_-5=5
10
13-_=7
6
18-_=15
3