II - Numbers
Standard 2.N.1.2 - Solve addition sentences with 3 or 4 numbers.
Included Skills: Addition
Addition and Subtraction • Adds and subtracts two digit numbers by drawing representations of tens and ones without and with regrouping. • Adds zero to a number and subtracts zero from a number. • Observes the commutative property of addition through patterns. • Solves addition, subtraction problems presented through pictures and verbal description. • Describes orally the situations that correspond to the given addition and subtraction facts. • Estimates the result of addition and subtraction and compares the result with another given number.