Which arithmetic sentences could accurately describe these sheets of cookies?

3x8b.gif (54923 bytes)    

6 x 5

2 x 7 + 10

2 x 12 + 1

2 x 4 x 4

16 + 8 + 2

3 + 6 + 15

30 - 11 + 6

3 x 8

2x12b1.gif (70251 bytes)

2 x 10

2 x 7 + 8

2 x 12

2 x 3 x 4

30 - 7

16 + 10

32 - 13

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