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What grade is this case? (B1)

 

 

 

 

 

 

1. GS 3+3=6 (ISUP 1)
2. GS 3+4=7 (ISUP 2)
3. GS 4+3=7 (ISUP 3)
4. GS 4+4=8 (ISUP 4)
5. GS 9-10 (ISUP 5)

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