55 lines
1.4 KiB
Markdown
55 lines
1.4 KiB
Markdown
# Space Exploration 4
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**Title:** Исследуй Планету
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**Subtitle:** Собери ресурсы, решая примеры!
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**Footer bubble:** Итого собрано ресурсов:
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## Layout
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- 2 columns, 20 problems per page
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- Icons: pack1 (pages 1–6), pack2 (pages 7–9)
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## Problem Pattern
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A ± B, where:
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- B is from 1 to 10
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- Result is from 1 to 29
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- Each problem crosses a 10-boundary: either 10 or 20 (strictly, not just touching)
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Types:
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- Add crossing 10: A ∈ [1,9], B such that A+B ∈ [11,29]
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- Add crossing 20: A ∈ [11,19], B such that A+B ∈ [21,29]
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- Sub crossing 10: A ∈ [11,19], B such that A−B ∈ [1,9]
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- Sub crossing 20: A ∈ [21,29], B such that A−B ∈ [11,19]
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All 4 types are mixed randomly on every page.
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## Pages
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### Page 1 (pack1)
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- **Hero:** spaceship1.jpeg, direction: row-reverse
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### Page 2 (pack1)
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- **Hero:** spaceship2.jpeg, direction: row
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### Page 3 (pack1)
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- **Hero:** spaceship3.png, direction: row-reverse
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### Page 4 (pack1)
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- **Hero:** spaceship4.jpeg, direction: row
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### Page 5 (pack1)
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- **Hero:** spaceship5.jpeg, direction: row-reverse
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### Page 6 (pack1)
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- **Hero:** spaceship6.jpeg, direction: row
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### Page 7 (pack2)
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- **Hero:** spaceship7.jpeg, direction: row-reverse
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### Page 8 (pack2)
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- **Hero:** spaceship8.jpeg, direction: row
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### Page 9 (pack2)
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- **Hero:** spaceship9.jpeg, direction: row-reverse
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