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Study
2nd Grade Addition and Subtraction Within 1000
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792-511
281
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Okay!
660-325
335
Oops!
Okay!
814-231
583
Oops!
Okay!
537-140
397
Oops!
Okay!
678-325
353
Oops!
Okay!
853-421
432
Oops!
Okay!
846-325
521
Oops!
Okay!
391-185
206
Oops!
Okay!
450-227
223
Oops!
Okay!
578-413
165
Oops!
Okay!
963-485
478
Oops!
Okay!
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