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.
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.
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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.
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.
Represent addition and subtraction up to 10 with objects, fingers, mental images, drawings, sounds (e.g., claps), acting out situations, verbal explanations, expressions, or equations.
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.
For any number from 1 to 9, find the number that makes 10 when added to the given number, e.g., by using objects or drawings, and record the answer with a drawing or equation.
Understand the meaning of the equal sign, and determine if equations involving addition and subtraction are true or false.
Understand the meaning of the equal sign, and determine if equations involving addition and subtraction are true or false.
Understand the meaning of the equal sign, and determine if equations involving addition and subtraction are true or false.
Understand the meaning of the equal sign, and determine if equations involving addition and subtraction are true or false.
Understand the meaning of the equal sign, and determine if equations involving addition and subtraction are true or false.