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New Hampshire - Grade 1 - Math - Operations and Algebraic Thinking - Adding Three Whole Numbers - 1.OA.2

Description

Solve word problems that call for addition of three whole numbers whose sum is less than or equal to 20, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem.

Additional Info

  • State - New Hampshire
  • Standard ID - 1.OA.2
  • Subjects - Math Common Core
  • Grade - 1

Keywords

  • Math
  • New Hampshire grade 1
  • Operations and Algebraic Thinking

More New Hampshire Topics

Count to 120, starting at any number less than 120. In this range, read and write numerals and represent a number of objects with a written numeral.

Add within 100, including adding a two-digit number and a one-digit number, and adding a two-digit number and a multiple of 10, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used. Understand that in adding two-digit numbers, one adds tens and tens, ones and ones; and sometimes it is necessary to compose a ten.

Subtract multiples of 10 in the range 10-90 from multiples of 10 in the range 10-90 (positive or zero differences), using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used.

Order three objects by length; compare the lengths of two objects indirectly by using a third object.

Express the length of an object as a whole number of length units, by laying multiple copies of a shorter object (the length unit) end to end; understand that the length measurement of an object is the number of same-size length units that span it with no gaps or overlaps. Limit to contexts where the object being measured is spanned by a whole number of length units with no gaps or overlaps.

Here is the skill that New Hampshire requires you to master

  • Grade Level 1
  • State Test Smarter Balanced Assessments
  • State Standards New Hampshire College and Career Ready Standards (NH CCRS)
  • Subject Math
  • Topic Name Adding Three Whole Numbers
  • Standard ID 1.OA.2
  • Description
    Solve word problems that call for addition of three whole numbers whose sum is less than or equal to 20, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem.

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New Hampshire has adopted the New Hampshire College and Career Ready Standards

New Hampshire has adopted the New Hampshire College and Career Ready Standards (NH CCRS) from the Common Core State Standards. New Hampshire schools will administer the Smarter Balanced Assessments to measure student proficiency of Common Core standards. Education Galaxy’s Common Core and Smarter Balanced Assessments preparation program provides online assessment and practice for students in Grades K-5 to help build mastery towards the Common Core State Standards. Our unique online program is easy to use and enjoyable for both teachers and students. Students work on their Study Plans practicing important concepts while teachers pull formative assessment reports to identify the strengths and weaknesses of their classroom and individual students.