MAFS.2.MD.2.5Archived Standard

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Use addition and subtraction within 100 to solve word problems involving lengths that are given in the same units, e.g., by using drawings (such as drawings of rulers) and equations with a symbol for the unknown number to represent the problem.
General Information
Subject Area: Mathematics
Grade: 2
Domain-Subdomain: Measurement and Data
Cluster: Level 2: Basic Application of Skills & Concepts
Cluster: Relate addition and subtraction to length. (Major Cluster) -

Clusters should not be sorted from Major to Supporting and then taught in that order. To do so would strip the coherence of the mathematical ideas and miss the opportunity to enhance the major work of the grade with the supporting clusters.

Date Adopted or Revised: 02/14
Content Complexity Rating: Level 2: Basic Application of Skills & Concepts - More Information
Date of Last Rating: 02/14
Status: State Board Approved - Archived

Related Courses

This benchmark is part of these courses.
5012040: Mathematics - Grade Two (Specifically in versions: 2014 - 2015, 2015 - 2022, 2022 and beyond (current))
7712030: Access Mathematics Grade 2 (Specifically in versions: 2014 - 2015, 2015 - 2018, 2018 - 2022, 2022 and beyond (current))
5020090: STEM Lab Grade 2 (Specifically in versions: 2016 - 2022, 2022 and beyond (current))
5012005: Foundational Skills in Mathematics K-2 (Specifically in versions: 2019 - 2022, 2022 and beyond (current))

Related Access Points

Alternate version of this benchmark for students with significant cognitive disabilities.

Related Resources

Vetted resources educators can use to teach the concepts and skills in this benchmark.

Formative Assessments

Adding Measures:

Students are asked to solve problems requiring addition of measures.

Type: Formative Assessment

Subtracting Measures:

Students use subtraction to solve problems requiring subtraction of measures.

Type: Formative Assessment

Heading Home:

Students determine the distance walked by a student on her way home from her friend's house.

Type: Formative Assessment

String For Bracelets:

Students are asked to write an equation for and solve a Compare (Difference Unknown) problem in a measurement context.

Type: Formative Assessment

Lesson Plan

Wilbur's Pig Pen Addition:

Students will explore the fundamentals of adding measurements involving shapes. Students will practice measuring the sides of rectangles and engage in an extended problem-solving task that includes adding to find the distance around rectangles.

Type: Lesson Plan

Original Student Tutorials

Construction Measurement Mix-Up:

Add and subtract within 100 to solve word problems involving lengths in the same units to fix the construction mix-up at a school in this interactive tutorial.

Type: Original Student Tutorial

Racing Riley Adds Lengths:

Learn different strategies for adding two-digit numbers and solve problems involving lengths as you complete this interactive tutorial.

Type: Original Student Tutorial

Tutorials

Solving word problems within 100:

This Khan Academy tutorial, called, "sports on a die" explains the pitfalls of relying on key words in a word problem. Students solve a problem by writing a missing addend addition equation and solve with the standard algorithm for subtracting two digit numbers.

Type: Tutorial

Subtracting within 100 using the standard algorithm:

In this tutorial video from Khan Academy, called "Using crayons", explore subtracting within 100 using the standard algorithm, as well as a bar diagram.

Type: Tutorial

MFAS Formative Assessments

Adding Measures:

Students are asked to solve problems requiring addition of measures.

Heading Home:

Students determine the distance walked by a student on her way home from her friend's house.

String For Bracelets:

Students are asked to write an equation for and solve a Compare (Difference Unknown) problem in a measurement context.

Subtracting Measures:

Students use subtraction to solve problems requiring subtraction of measures.

Original Student Tutorials Mathematics - Grades K-5

Construction Measurement Mix-Up:

Add and subtract within 100 to solve word problems involving lengths in the same units to fix the construction mix-up at a school in this interactive tutorial.

Racing Riley Adds Lengths:

Learn different strategies for adding two-digit numbers and solve problems involving lengths as you complete this interactive tutorial.

Student Resources

Vetted resources students can use to learn the concepts and skills in this benchmark.

Original Student Tutorials

Construction Measurement Mix-Up:

Add and subtract within 100 to solve word problems involving lengths in the same units to fix the construction mix-up at a school in this interactive tutorial.

Type: Original Student Tutorial

Racing Riley Adds Lengths:

Learn different strategies for adding two-digit numbers and solve problems involving lengths as you complete this interactive tutorial.

Type: Original Student Tutorial

Tutorials

Solving word problems within 100:

This Khan Academy tutorial, called, "sports on a die" explains the pitfalls of relying on key words in a word problem. Students solve a problem by writing a missing addend addition equation and solve with the standard algorithm for subtracting two digit numbers.

Type: Tutorial

Subtracting within 100 using the standard algorithm:

In this tutorial video from Khan Academy, called "Using crayons", explore subtracting within 100 using the standard algorithm, as well as a bar diagram.

Type: Tutorial

Parent Resources

Vetted resources caregivers can use to help students learn the concepts and skills in this benchmark.

Tutorials

Solving word problems within 100:

This Khan Academy tutorial, called, "sports on a die" explains the pitfalls of relying on key words in a word problem. Students solve a problem by writing a missing addend addition equation and solve with the standard algorithm for subtracting two digit numbers.

Type: Tutorial

Subtracting within 100 using the standard algorithm:

In this tutorial video from Khan Academy, called "Using crayons", explore subtracting within 100 using the standard algorithm, as well as a bar diagram.

Type: Tutorial