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Simplify: 47² − 54²
5,031
49
-707
35
Simplify: 25 + 11 × 10 − 56 ÷ 7
127
352
43
79
Simplify: 14² − 32²
324
1,192
-828
288
Simplify: 15² − 12²
81
15
9
339
Simplify: 1/3 + 1/9
1/27
4/9
1/6
2/9