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Explanation: Extempore refers to a speech or performance done without preparation. Impromptu: Also refers to something done without preparation, but it is usually less formal than extempore. Rhetoric: The art of persuasive speaking or writing, often prepared in advance. Oration: A formal speech, usually pre-planned and delivered on a special occasion. Ad-lib: To speak or perform without preparation, often improvising, but it is commonly associated with casual or entertainment settings.
(25.111 % of 200) × 26 ÷ 12.99 – 18.88 × 15.82 + 150.33% of 3√ 4917 = ? – 200
...`sqrt(7744)` - `sqrt(4761)` + `sqrt(8281)` + `sqrt(5625)` + ? = 1856
1200% of 18 + √1600 + 62 = ?2 + (90 of 0.4)
225÷ 25 x 21 - 30 = ? + √2209 - √7744
7/11 × 1034 + 1(4/7) × 2401 = 1230 +?
862 - 37 – ? = – 432
779 + 136 – 334 = 270 + 121 + ?
81 ÷ 0.09 × 1.4 – 1223=?