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Problem 12 · The Ironclad’s Hidden Rest SitePrint one blank worksheet now, or prepare a family or classroom packet.

Problem 12

The Ironclad’s Hidden Rest Site

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The Ironclad’s Hidden Rest Site

Earn one jewelBrilliant-Cut ZirconLevel 4

In Slay the Spire, the Ironclad marks three different Spire rooms on whole-number floors. From lower to higher, they are the Monster, Rest Site, and Treasure. The Rest Site is the same distance from each outside room. The Monster’s hidden floor number and the Treasure’s hidden floor number add to 68.

Ironclad’s route winds upward toward a hidden Rest Site.

Map of the hidden floors

Room order is shown · Floor numbers are hidden

Three equally spaced rooms on a number line Monster, Rest Site, and Treasure are shown from left to right at equally spaced points. Each gap is labeled same jump. The hidden Monster floor plus the hidden Treasure floor equals 68. OUTSIDE FLOORS ? + ? = 68 SAME JUMP SAME JUMP Monster Rest Site Treasure LOWER BETWEEN HIGHER REST SITE FLOOR: ______

Your challenge

What floor is the Rest Site on? Explain why its floor is forced even though the two outside floor numbers and the jump size are hidden.

Write the Rest Site floor on the number line. Use separate paper for your equation and explanation.

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Pick the option that best matches this challenge. Recommendations use topic, math area, grade, story, and thinking challenge.

Keep exploring

Slay the Spire challenge 4 of 4

Full rating evidence

Difficulty & skills

Designed for Grade 2 · Uses Middle Grade 2 math · About 6–15 minutes

Grade 2 · Number and operations · Number lines · Whole-number operations · Equal groups

MJ 2.6 · C4 · W1

MathJewels rates content readiness, problem-solving challenge, and workload separately. These estimates describe the easiest reasonable solution path and do not reveal the solution.

Content level

MJ 2.6

Grades K–2

Grade 2 progression · point 6

Likely range
MJ 2.4–2.8
Confidence
91%

Challenge

C4 · Insight

A hidden structural insight is needed to unlock the problem.

  • Method selection3
  • Reasoning depth2
  • Novelty3
  • Constraint management2
  • Proof or justification3

Workload

W1 · Light

A short response with only a few steps.

Active time
6–15 minutes · typically 10
Response
Short Explanation
Known-method steps
4
  • Mechanical execution1
  • Written output1
  • Representation production1
  • Bookkeeping0

Learning focus

Skills this problem practices

What a successful response demonstrates, with each skill’s share of the content rating.

  • Use number-line structure

    Use order and equal distances on a number line to determine and justify relationships among whole-number positions.

    • Independent mastery
    • 60% focus
    • MJ 2.5 milestone

  • Double and halve whole-number quantities

    Use the inverse relationship between doubling a whole-number quantity and splitting an even quantity into two equal whole-number parts.

    • Independent mastery
    • 40% focus
    • MJ 2.6 milestone

Readiness

Helpful prerequisites

Skills the rating assumes are already available to the learner.

  • Add and subtract whole-number quantities

    Combine and compare whole-number quantities in contextual problems and use addition or subtraction to find an unknown result.

    • Developing readiness
    • Required
    • MJ 2.3 milestone