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The abdication subtraction oral arithmetic problem in the second volume of mathematics in grade one.
14-5 = 18-9 = 1 1-2 = 12-3 = 13-4 = 15-6 = 16-7 =

14-5 = 18-9 = 1 1-2 = 12-3 = 13-4 = 15-6 = 16-7 =

18- 1. 18-2. 18-4. 18-5. 18-6. 12-5. 19-

18-9 =11-2 =12-3 =13-4 =15-6 =16-7 =/kl

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