 # Standard #: MAFS.4.OA.1.b (Archived Standard)

This document was generated on CPALMS - www.cpalms.org

Determine the unknown whole number in an equation relating four whole numbers using comparative relational thinking. For example, solve 76 + 9 = n + 5 for n by arguing that nine is four more than five, so the unknown number must be four greater than 76.

### General Information

Subject Area: Mathematics
Domain-Subdomain: Operations and Algebraic Thinking
Cluster: Use the four operations with whole numbers to solve problems. (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 of Last Rating: 08/14
Status: State Board Approved - Archived
Assessed: Yes

### Test Item Specifications

Also assesses: MAFS.4.OA.1a

Assessment Limits :
Whole number equations are limited to:
• addition and subtraction within 1,000.
• multiplication of 2-digit by 1-digit or a multiple of 10 by a 1-digit.
• division of 2-digit by 1-digit.

Variables represented by a letter are allowable.

Calculator :

No

Context :

Allowable

### Sample Test Items (2)

 Test Item # Question Difficulty Type Sample Item 1 Select all the true equations. N/A MS: Multiselect Sample Item 2 What is the missing number in the equation shown?102 - 25 = [ ] - 38 N/A EE: Equation Editor

#### Related Courses

 Course Number1111 Course Title222 5012060: Mathematics - Grade Four (Specifically in versions: 2014 - 2015, 2015 - 2022, 2022 and beyond (current)) 7712050: Access Mathematics Grade 4 (Specifically in versions: 2014 - 2015, 2015 - 2018, 2018 - 2022, 2022 and beyond (current)) 5012015: Foundational Skills in Mathematics 3-5 (Specifically in versions: 2019 - 2022, 2022 and beyond (current))

#### Formative Assessments

 Name Description Comparative Relational Thinking in a Multiplication Equation Students use comparative relational thinking to determine the value of an unknown number. Comparative Relational Thinking in a Division Equation Students are asked to use comparative relational thinking to determine the value of an unknown number. Comparative Relational Thinking in an Addition Equation Students use comparative relational thinking to determine the value of an unknown number. Comparative Relational Thinking in a Subtraction Equation Students use comparative relational thinking to determine the value of an unknown number.

#### Lesson Plan

 Name Description Is the Equation True and Finding the Missing Number Students will determine if an equation is true or false based on using comparative relational thinking and knowledge of operations. The students will also determine the unknown number in some equations involving addition.

#### Original Student Tutorials

 Name Description Think Fast! Comparative Strategies: Part 3 Learn how to find a missing value when there are subtraction expressions on both sides of an equal sign by using comparative relational thinking and a number line in this interactive tutorial. This is part 3 in a 3-part series. Click below to open the other tutorials in the series on comparative strategies. Think Fast! Comparative Strategies: Part 2 Learn how to think fast to find a missing value when there are subtraction expressions on both sides of an equal sign by using using comparative relational thinking and a part-whole board in this interactive tutorial. This is part 2 in a 3-part series. Click below to open the other tutorials in the series on comparative strategies. Part 1: Think Fast! Comparative Strategies (Addition expressions on both sides of the equal sign) Part 3: Think Fast! Comparative Strategies [COMING SOON] Think Fast: Comparative Strategies: Part 1 Learn how to think fast and compare the parts in addition expressions on different sides of the equal sign to find an unknown number with this interactive tutorial.

#### Original Student Tutorials

 Name Description Think Fast! Comparative Strategies: Part 3: Learn how to find a missing value when there are subtraction expressions on both sides of an equal sign by using comparative relational thinking and a number line in this interactive tutorial. This is part 3 in a 3-part series. Click below to open the other tutorials in the series on comparative strategies. Think Fast! Comparative Strategies: Part 2: Learn how to think fast to find a missing value when there are subtraction expressions on both sides of an equal sign by using using comparative relational thinking and a part-whole board in this interactive tutorial. This is part 2 in a 3-part series. Click below to open the other tutorials in the series on comparative strategies. Part 1: Think Fast! Comparative Strategies (Addition expressions on both sides of the equal sign) Part 3: Think Fast! Comparative Strategies [COMING SOON] Think Fast: Comparative Strategies: Part 1: Learn how to think fast and compare the parts in addition expressions on different sides of the equal sign to find an unknown number with this interactive tutorial.

Printed On:8/10/2022 5:59:17 PM
Print Page | Close this window