a: 4 b: 6 c: 43 d: 1
Question 2: 5+5=?
a: -3 b: 10 c: 8 d: 32
Question 3: 2*2=?
a: gum b: plants c: 4 d: Dr. Wang
Question 4:7-7=?
a: math depot b: vwc c: 18 d: 0
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