Math Curriculum

2nd Grade

Course Purpose:

Students will apply place value concepts to the base-ten system in working with multi-digit numbers. Students will select and apply strategies to develop fluency with addition and subtraction within 100.

Outcomes and Components:

M.2.4

  Students will apply multiple strategies to solve addition and subtraction problems within 1,000.

Pacing  

Instruct/

Assess

 

Component Code

 

Component

Standard(s)

    M.2.4.1   Add and subtract within 1,000 to include three-digit numbers using concrete models or drawings and strategies based on place value, (regrouping hundreds, tens and ones as needed) properties of operations, and/or the relationship between addition and subtraction. 2.NBT.B.7
    M.2.4.2   Understand that in subtracting three digit numbers, one subtracts hundreds and hundreds, tens and tens, ones and ones and sometimes it is necessary to decompose tens or hundreds. 2.NBT.B.7
    M.2.4.3   Relate strategies used in solving addition and subtraction problems within 1,000 to a written method. 2.NBT.B.7

Academic Vocabulary: Explain, read, write, compare

Content Vocabulary: Skip count, hundreds, tens, ones, base-ten, standard form, expanded form, greater than, less than, equal to.