Understand the meaning of the equal sign, and determine if equations involving addition and subtraction are true or false.
Operations and Algebraic Thinking
Work with addition and subtraction equations.
Rhode Island DOE
Last updated:
2013-06-20 15:53:13
Lessons for this standard
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Related standards
- This standard is part of: CCSS.Math.Content.1.OA.D
- This standard is derived from: CCSS.Math.Content.1.OA.D.7
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Rhode Island DOE
Last updated:
2013-06-20 15:53:14
Similar standards in other grades
Standards with the same topic and subject but for other grades
Solve two-step word problems using the four operations. Represent these problems using equations with a letter standing for the unknown quantity. Assess the reasonableness of answers using mental computation and estimation strategies including rounding.
1 lesson is aligned with this standard
Rhode Island DOE
Last updated:
2013-06-20 15:54:01
Represent addition and subtraction with objects, fingers, mental images, drawings, sounds (e.g., claps), acting out situations, verbal explanations, expressions, or equations.
Rhode Island DOE
Last updated:
2013-06-20 15:52:51
Interpret a multiplication equation as a comparison, e.g., interpret 35 = 5 × 7 as a statement that 35 is 5 times as many as 7 and 7 times as many as 5. Represent verbal statements of multiplicative comparisons as multiplication equations.
Rhode Island DOE
Last updated:
2013-06-20 15:54:24
Add and subtract within 20.
Rhode Island DOE
Last updated:
2013-06-20 15:53:34
Fluently add and subtract within 20 using mental strategies. By end of Grade 2, know from memory all sums of two one-digit numbers.
Rhode Island DOE
Last updated:
2013-06-20 15:53:35
Similar standards elsewhere
Standards derived from the same national standard
Understand the meaning of the equal sign, and determine if equations involving addition and subtraction are true or false.
North Carolina DOE
Last updated:
2015-06-23 09:57:13
Understand the meaning of the equal sign, and determine if equations involving addition and subtraction are true or false.
Vermont DOE
Last updated:
2013-06-21 08:28:12
Understand the meaning of the equal sign, and determine if equations involving addition and subtraction are true or false.
North Dakota DOE
Last updated:
2015-04-08 13:03:28
Understand the meaning of the equal sign, and determine if equations involving addition and subtraction are true or false.
New Jersey DOE
Last updated:
2016-05-13 08:56:22
Understand the meaning of the equal sign, and determine if equations involving addition and subtraction are true or false.
Alabama DOE
Last updated:
2015-04-08 13:03:28