## 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.

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 (e.g., Which of the following equations are true and which are false? 6 = 6, 7 = 8 – 1, 5 + 2 = 2 + 5, 4 + 1 = 5 + 2).