mml=<math xmlns="http://www.w3.org/1998/Math/MathML"><mo>?</mo><mo>=</mo><msqrt><mn>64000</mn></msqrt><mo>=</mo><mn>252</mn><mo>.98</mo><mo>=</mo><mn>253</mn><mo> </mo><mfenced separators="|"><mrow><mi>approx</mi><mo>.</mo></mrow></mfenced></math>