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Math

 

Learning Targets:

2.NBT.7 Subtract within 1000, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method. Understand that in adding three-digit numbers, one adds or subtracts hundreds and hundreds, tens and tens, ones and ones; and sometimes it is necessary to compose or decompose tens or hundreds.

  • Understand place value within 1000.

  • Decompose any number within 1000 into hundred(s), ten(s), and one(s).

  • Choose an appropriate strategy for solving a subtraction problem within 1000.

  • Relate the chosen strategy (using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction) to a written method (equation) and explain the reasoning used.

  • Use composition and decomposition of hundreds and tens when necessary to subtract within 1000.

 

 

 

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