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Problem 9 · Nurse Joy’s Poké Ball PacksOnly the worksheet will be included when you print.
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Name
Date

Nurse Joy’s Poké Ball Packs

Jewel value 4 jewels

Nurse Joy has exactly 248 Poké Balls. She packs every Poké Ball into full containers.

A large crate holds 100 Poké Balls, a small box holds 10 Poké Balls, and a one-ball sleeve holds 1 Poké Ball.

She uses exactly 23 containers altogether, and she uses more small boxes than one-ball sleeves.

Full-container guide
Large crate holds 100 Poké Balls
Small box holds 10 Poké Balls
One-ball sleeve holds 1 Poké Ball

Your challenge

How many large crates, small boxes, and one-ball sleeves does Nurse Joy use?

Show your answer

Show how your three container counts make both 248 Poké Balls and 23 containers. Explain why no other answer works.

Show your work

Teacher & family guide

Difficulty & skills

Grade 2 · Number and operations · Place value · Whole-number operations

MJ 2.7 · C3 · W2

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 2.7

Grades K–2

Grade 2 progression · point 7

Likely range
MJ 2.4–3.0
Confidence
88%

Challenge

C3 · Stretch

A nontrivial plan using familiar mathematical ideas.

  • Method selection2
  • Reasoning depth3
  • Novelty2
  • Constraint management3
  • Proof or justification2

Workload

W2 · Moderate

Several coordinated calculations, representations, or explanation steps.

Active time
6–15 minutes · typically 10
Response
Short Explanation
Known-method steps
7
  • Mechanical execution2
  • Written output2
  • Representation production2
  • Bookkeeping2

Learning focus

Skills this problem practices

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

  • Compose and decompose numbers to 1,000

    Represent a whole number to 1,000 with standard and nonstandard collections of hundreds, tens, and ones and verify that equivalent decompositions preserve its value.

    • Independent mastery
    • 80% focus
    • MJ 2.7 milestone

  • Add and subtract quantities

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

    • Independent mastery
    • 20% focus
    • MJ 2.7 milestone

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