lesson
Explaining Subtraction Strategies
Explain and justify a subtraction strategy using place value language and diagrams.
Updated 1 month ago · 4 views
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This lesson is part of a track
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Three-Digit Operations and Word Problems
9 lessons
Goal
Extend addition and subtraction to three-digit numbers with regrouping, including across zeros, and apply these skills to solve multi-step word problems.
9 lessons
0 of 9 done
- Three-Digit Addition Without RegroupingUp next
- Three-Digit Addition With RegroupingNot started yet
- Three-Digit Subtraction Without RegroupingNot started yet
- Three-Digit Subtraction With RegroupingNot started yet
- Three-Digit Subtraction Across ZerosNot started yet
- One-Step Addition Word ProblemsNot started yet
- One-Step Subtraction Word ProblemsNot started yet
- Two-Step Addition and Subtraction Word ProblemsNot started yet
- Explaining Subtraction StrategiesYou are here
Learning standards covered
111.4(b)(1)(D)Texas Essential Knowledge and Skills (TEKS) · Math · 2nd Gradecommunicate mathematical ideas, reasoning, and their implications using multiple representations, including symbols, diagrams, graphs, and language as appropriate;
Open Global Standard:OGM.3.MP.1
111.4(b)(1)(G)Texas Essential Knowledge and Skills (TEKS) · Math · 2nd Gradedisplay, explain, and justify mathematical ideas and arguments using precise mathematical language in written or oral communication.
Open Global Standard:OGM.3.MP.1
OGM.3.MP.1