Understand the meaning of the equal sign, and determine if equations involving addition and subtraction are true or false. For example, which of the following equations are true and which are false? 6 = 6, 7 = 8 - 1, 5 + 2 = 2 + 5, 4 + 1 = 5 + 2.
Standard:
MA.1.AR.2.2
Description:
Determine and explain if equations involving addition or subtraction are true or false.
Standard:
1.5.E
Description:
understand that the equal sign represents a relationship where expressions on each side of
the equal sign represent the same value(s);
