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Addition and Subtraction Within 20

2nd Grade · Math · TEKS

5 lessons

Goal

Build fluency with addition and subtraction within 20 using mental strategies like doubles, making ten, and fact families.

5 lessons
0 of 5 done
  1. Adding Within 20 Using DoublesUp next
  2. Adding Within 20 Using Near DoublesNot started yet
  3. Adding Within 20 by Making TenNot started yet
  4. Subtracting Within 20 Using Fact FamiliesYou are here
  5. Mixed Addition and Subtraction Within 20Not started yet
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Learning standards covered

us-tx111.4(b)(1)(C)Texas Essential Knowledge and Skills (TEKS) · Math · 2nd Grade

select tools, including real objects, manipulatives, paper and pencil, and technology as appropriate, and techniques, including mental math, estimation, and number sense as appropriate, to solve problems;

Open Global Standard:OGM.3.NBT.5OGM.3.MP.1
us-tx111.4(b)(1)(F)Texas Essential Knowledge and Skills (TEKS) · Math · 2nd Grade

analyze mathematical relationships to connect and communicate mathematical ideas; and

Open Global Standard:OGM.3.MP.1
GlobalOGM.3.NBT.5
GlobalOGM.3.MP.1