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K-5 Grado 2 Unit 7 Lesson 6

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•K-5 Math 6-8 Math 9-12 Math

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IM K-5 Math
IM 6-8 Math
IM 9-12 Math

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Lesson 6

Warm-up Activity 1 Activity 2

Unit 7, Lesson 6

Usemos una decena para sumar hasta 1,000

Grado 2

Warm-up

Conversación numérica: Números que forman 10

Encuentra mentalmente el valor de cada expresión.

Activity 1

Sumemos números de 2 dígitos y de 3 dígitos

Encuentra el valor de cada suma.

Conjunto 1

Conjunto 2

Conjunto 3
¿Qué patrones observas?

Activity 2

Clasificación de tarjetas: Decena perfecta

Tu profesor te va a dar varias tarjetas.

Empareja cada número de 3 dígitos con un número de 2 dígitos. Al sumar tus números, debes formar una decena sin que sobren unidades. Prepárate para explicar tu razonamiento.
Escoge una pareja de números. Encuentra el valor de su suma. Muestra cómo pensaste. Usa dibujos, números o palabras.

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Standards Alignment

Building On

Addressing

2.NBT.5

Fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction.

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Building Toward

Standards Alignment

Building On

Addressing

2.NBT.7

Add and 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 or subtracting 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.

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Building Toward

Standards Alignment

Building On

Addressing

2.NBT.7

Add and 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 or subtracting 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.

View Full Standard

Building Toward