2.4 The student applies mathematical process standards to develop and use strategies and methods for whole number computations in Instructional Considerations order to solve addition and subtraction problems with efficiency and accuracy. The student is expected to: 2013-14 2014-15 Current TEKS New 2nd grade TEKS Current TEKS New 3rd grade TEKS 2.3C select addition or 2.4C solve one-step and 3.3B select addition or 3.4A solve with fluency one-step subtraction to solve problems word problems involving subtraction and use the operation and two-step problems involving using two-digit numbers, whether addition and subtraction within to solve problems involving addition and subtraction within or not regrouping is necessary 1,000 using a variety of strategies whole numbers through 999 1,000 using strategies based on based on place value, including place value, properties of algorithms operations, and the relationship between addition and subtraction 2.3C select addition or 2.4D generate and solve 3.3B select addition or 3.4A solve with fluency one-step subtraction to solve problems problem situations for a given subtraction and use the operation and two-step problems involving using two-digit numbers, whether mathematical number sentence to solve problems involving addition and subtraction within or not regrouping is necessary involving addition and subtraction whole numbers through 999 1,000 using strategies based on of whole numbers within 1,000 place value, properties of operations, and the relationship between addition and subtraction
2.4 The student applies mathematical process standards to develop and use strategies and methods for whole number computations in order to solve addition and subtraction problems with efficiency and accuracy. The student is expected to: Instructional Considerations Current TEKS New 2nd grade TEKS 2013-14 2014-15 Current TEKS New 3rd grade TEKS 2.3C select addition or subtraction to solve problems using two-digit numbers, whether or not regrouping is necessary 2.4C solve one-step and word problems involving addition and subtraction within 1,000 using a variety of strategies based on place value, including algorithms 3.3B select addition or subtraction and use the operation to solve problems involving whole numbers through 999 3.4A solve with fluency one-step and two-step problems involving addition and subtraction within 1,000 using strategies based on place value, properties of operations, and the relationship between addition and subtraction 2.3C select addition or subtraction to solve problems using two-digit numbers, whether or not regrouping is necessary 2.4D generate and solve problem situations for a given mathematical number sentence involving addition and subtraction of whole numbers within 1,000 3.3B select addition or subtraction and use the operation to solve problems involving whole numbers through 999 3.4A solve with fluency one-step and two-step problems involving addition and subtraction within 1,000 using strategies based on place value, properties of operations, and the relationship between addition and subtraction