Problem 9 · Nurse Joy’s Poké Ball PacksPrint one blank worksheet now, download its PDF, or prepare a family or classroom packet.

MathJewels.com

Name

Date

Nurse Joy’s Poké Ball Packs

Complete to collectPolished QuartzLevel 3 · 5 Glints

In Pokémon, 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 Count: ______

Small box holds 10 Poké Balls Count: ______

One-ball sleeve holds 1 Poké Ball Count: ______

Your challenge

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

Show your answer

Write each count under its container. Use scratch paper to show how the counts make both totals and why no other answer works.

Theme

Pokémon

Skills

Grade

Grade 2

Math area

Topics

Math readiness

Designed for Grade 2

Uses Late Grade 2 math.

Thinking

Stretch challenge

A nontrivial plan using familiar mathematical ideas.

Time & response

About 6–15 minutes

Moderate amount of written work · Short Explanation response.

How to support: Let the learner compare the two possible hundreds-for-tens trades and record each container count under its picture.

Precise MJD coordinates, factor scores, skill weights, calibration evidence, and curriculum crosswalks. This reference is available to everyone and is intentionally last.

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 whole numbers to 1,000
The learner can compose and decompose whole numbers to 1,000. The capability is credited only when the task makes that demand necessary for success.
- Independent mastery
- 80% focus
- MJ 2.7 milestone
Solve one- and two-step addition/subtraction stories within 100
The learner can solve one- and two-step addition/subtraction stories within 100. This capability is distinct from mere exposure to or isolated use of Grade 1 story structures.
- Independent mastery
- 20% focus
- MJ 2.3 milestone

External alignment

Curriculum and standards crosswalks

Approved evidence-backed locations that support discovery. They do not define the MathJewels rating.

Bridges in Mathematicsthird-edition · 13 locations

Units1 location · Representative: Unit 5: Place Value to One Thousand

Unit 5: Place Value to One Thousand
grade-2-unit-5
The official Grade 2 Unit 5 overview explicitly includes grouping into ones, tens, and hundreds and using expanded form, which directly supports this capability.
- Bridges in Mathematics Third Edition - Grade 2 Unit 5 Overview · Page 1, unit goals and expanded-form example
- Strong
- Assesses
- Narrower
- Independent
- High Confidence

Modules7 locations · Representative: Module 4: Adding & Subtracting to 20

Module 4: Adding & Subtracting to 20
grade-2-unit-1-module-4
The official publisher correlation lists this curriculum location for 2.OA.A.1, which resolves from the MathJewels capability's recorded CCSS locator. The mapping is partial because a curriculum location can develop more than this single capability.
- Bridges & Number Corner Third Edition: Grade 2 Correlations to the Common Core State Standards · Page 5, standard 2.OA.A.1: Unit 1, Module 4, Sessions 4
- Partial
- Develops
- Overlapping
- Medium Confidence
Module 2: Adding & Subtracting on the Number Line
grade-2-unit-3-module-2
The official publisher correlation lists this curriculum location for 2.OA.A.1, which resolves from the MathJewels capability's recorded CCSS locator. The mapping is partial because a curriculum location can develop more than this single capability.
- Bridges & Number Corner Third Edition: Grade 2 Correlations to the Common Core State Standards · Page 5, standard 2.OA.A.1: Unit 3, Module 2, Sessions 1, 2
- Partial
- Develops
- Overlapping
- Medium Confidence
Module 3: Posing & Solving Contextual Problems
grade-2-unit-3-module-3
The official publisher correlation lists this curriculum location for 2.OA.A.1, which resolves from the MathJewels capability's recorded CCSS locator. The mapping is partial because a curriculum location can develop more than this single capability.
- Bridges & Number Corner Third Edition: Grade 2 Correlations to the Common Core State Standards · Page 5, standard 2.OA.A.1: Unit 3, Module 3, Sessions 1, 3, 4, 5, 7
- Partial
- Develops
- Overlapping
- Medium Confidence
Module 4: Data & the Color Tiles Project
grade-2-unit-3-module-4
The official publisher correlation lists this curriculum location for 2.OA.A.1, which resolves from the MathJewels capability's recorded CCSS locator. The mapping is partial because a curriculum location can develop more than this single capability.
- Bridges & Number Corner Third Edition: Grade 2 Correlations to the Common Core State Standards · Page 5, standard 2.OA.A.1: Unit 3, Module 4, Sessions 1
- Partial
- Develops
- Overlapping
- Medium Confidence
Module 3: Jessie & the Giant
grade-2-unit-4-module-3
The official publisher correlation lists this curriculum location for 2.OA.A.1, which resolves from the MathJewels capability's recorded CCSS locator. The mapping is partial because a curriculum location can develop more than this single capability.
- Bridges & Number Corner Third Edition: Grade 2 Correlations to the Common Core State Standards · Page 5, standard 2.OA.A.1: Unit 4, Module 3, Sessions 2, 5, 6
- Partial
- Develops
- Overlapping
- Medium Confidence
Module 4: Thinking in 3s
grade-2-unit-4-module-4
The official publisher correlation lists this curriculum location for 2.OA.A.1, which resolves from the MathJewels capability's recorded CCSS locator. The mapping is partial because a curriculum location can develop more than this single capability.
- Bridges & Number Corner Third Edition: Grade 2 Correlations to the Common Core State Standards · Page 5, standard 2.OA.A.1: Unit 4, Module 4, Sessions 1, 2
- Partial
- Develops
- Overlapping
- Medium Confidence
Module 4: Exploring Equal Parts & Groups
grade-2-unit-7-module-4
The official publisher correlation lists this curriculum location for 2.OA.A.1, which resolves from the MathJewels capability's recorded CCSS locator. The mapping is partial because a curriculum location can develop more than this single capability.
- Bridges & Number Corner Third Edition: Grade 2 Correlations to the Common Core State Standards · Page 5, standard 2.OA.A.1: Unit 7, Module 4, Sessions 1
- Partial
- Develops
- Overlapping
- Medium Confidence

Number Corner workouts5 locations · Representative: September: Calendar Grid

September: Calendar Grid
grade-2-number-corner-september-calendar-grid
The official publisher correlation lists this curriculum location for 2.OA.A.1, which resolves from the MathJewels capability's recorded CCSS locator. The mapping is partial because a curriculum location can develop more than this single capability.
- Bridges & Number Corner Third Edition: Grade 2 Correlations to the Common Core State Standards · Page 5, standard 2.OA.A.1: Number Corner September, Calendar Grid
- Partial
- Develops
- Overlapping
- Medium Confidence
March: Number Line
grade-2-number-corner-march-number-line
The official publisher correlation lists this curriculum location for 2.OA.A.1, which resolves from the MathJewels capability's recorded CCSS locator. The mapping is partial because a curriculum location can develop more than this single capability.
- Bridges & Number Corner Third Edition: Grade 2 Correlations to the Common Core State Standards · Page 5, standard 2.OA.A.1: Number Corner March, Number Line
- Partial
- Develops
- Overlapping
- Medium Confidence
April: Number Line
grade-2-number-corner-april-number-line
The official publisher correlation lists this curriculum location for 2.OA.A.1, which resolves from the MathJewels capability's recorded CCSS locator. The mapping is partial because a curriculum location can develop more than this single capability.
- Bridges & Number Corner Third Edition: Grade 2 Correlations to the Common Core State Standards · Page 5, standard 2.OA.A.1: Number Corner April, Number Line
- Partial
- Develops
- Overlapping
- Medium Confidence
May: Calendar Grid
grade-2-number-corner-may-calendar-grid
The official publisher correlation lists this curriculum location for 2.OA.A.1, which resolves from the MathJewels capability's recorded CCSS locator. The mapping is partial because a curriculum location can develop more than this single capability.
- Bridges & Number Corner Third Edition: Grade 2 Correlations to the Common Core State Standards · Page 5, standard 2.OA.A.1: Number Corner May, Calendar Grid
- Partial
- Develops
- Overlapping
- Medium Confidence
May: Calendar Collector
grade-2-number-corner-may-calendar-collector
The official publisher correlation lists this curriculum location for 2.OA.A.1, which resolves from the MathJewels capability's recorded CCSS locator. The mapping is partial because a curriculum location can develop more than this single capability.
- Bridges & Number Corner Third Edition: Grade 2 Correlations to the Common Core State Standards · Page 5, standard 2.OA.A.1: Number Corner May, Calendar Collector
- Partial
- Develops
- Overlapping
- Medium Confidence

Common Core State Standards for Mathematics2010 · 2 locations

Standards2 locations · Representative: Understand that the three digits of a three-digit number represent amounts of hundreds, tens, and ones; e.g., 706 equals 7 hundreds, 0 tens, and 6 ones. Understand the following as special cases:

Use addition and subtraction within 100 to solve one- and two-step word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem.
CCSS.MATH.CONTENT.2.OA.A.1
Solve one- and two-step addition/subtraction stories within 100 was reviewed against CCSS.Math.Content.2.OA.A.1. The ontology's CCSS locator 2.OA.A.1 resolves to this standard; the atomic skill is narrower relative to the published expectation.
- Strong
- Assesses
- Narrower
- Independent
- Medium Confidence
Understand that the three digits of a three-digit number represent amounts of hundreds, tens, and ones; e.g., 706 equals 7 hundreds, 0 tens, and 6 ones. Understand the following as special cases:
CCSS.MATH.CONTENT.2.NBT.A.1
2.NBT.A.1 directly decomposes three-digit numbers into hundreds, tens, and ones; the MathJewels skill covers that composition and decomposition through 1,000.
- Strong
- Assesses
- Narrower
- Independent
- High Confidence

Prepare print packet

Nurse Joy’s Poké Ball Packs

Your challenge

Show your answer

About this problem

Theme

Skills

Grade

Math area

Topics

Before you choose this problem

Designed for Grade 2

Stretch challenge

About 6–15 minutes

Pokémon challenge 1 of 3

Rating, skills & curriculum

MJ 2.7

C3 · Stretch

W2 · Moderate

Skills this problem practices

Compose and decompose whole numbers to 1,000

Solve one- and two-step addition/subtraction stories within 100

Curriculum and standards crosswalks

Unit 5: Place Value to One Thousand

Module 4: Adding & Subtracting to 20

Module 2: Adding & Subtracting on the Number Line

Module 3: Posing & Solving Contextual Problems

Module 4: Data & the Color Tiles Project

Module 3: Jessie & the Giant

Module 4: Thinking in 3s

Module 4: Exploring Equal Parts & Groups

September: Calendar Grid

March: Number Line

April: Number Line

May: Calendar Grid

May: Calendar Collector

Understand that the three digits of a three-digit number represent amounts of hundreds, tens, and ones; e.g., 706 equals 7 hundreds, 0 tens, and 6 ones. Understand the following as special cases:

Nurse Joy’s Poké Ball Packs

Your challenge

Show your answer

Theme

Skills

Grade

Math area

Topics

Designed for Grade 2

Stretch challenge

About 6–15 minutes

Choose what to try next

Pokémon challenge 1 of 3

MJ 2.7

C3 · Stretch

W2 · Moderate

Skills this problem practices

Compose and decompose whole numbers to 1,000

Solve one- and two-step addition/subtraction stories within 100

Curriculum and standards crosswalks