Half of a sphere is called hemisphere.
6400, 1600, ?, 80, 16, 4
715 708 694 673 645 ?
98, 122, 182, 278, 410, ?
18.003 × 3.99 × (135.003 ÷ 26.97) – (15.001 × 3.94) = ?
44, 42, 46, 38, 54, ?
178 168 148 ? 78 28
418, 406, 430, 382, 478, ?, 670
23 40 67 104 ? 208
...72, 79, 100, 135, 184, ?
290, 571, 900, ?, 1485, 1890
