Explanation:
this is a college level question, and you need help with that ? elementary school students have to be able to answer this.
30 = 27 + 3
6 × 9 = 54
81 / 9 = 9
2 = 10 / 5
8 × 4 = 32
72 / 9 = 8
7 × 7 = 49
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