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2.NBT.B.5

31 Results Found

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2nd Grade Math

In this Common Core-aligned course, 2nd graders develop an understanding of and fluency with addition and subtraction, place value within 1,000, measurement with both standard and metric units, and properties of two-dimensional shapes.

3rd Grade Math

In this Common Core-aligned course, third graders develop an understanding of and fluency with multiplication and division within 100, fractions, area, and properties of two-dimensional shapes.

4th Grade Math

In this Common Core-aligned course, students develop an understanding of multi-digit multiplication and division; fraction equivalence and operations with fractions; and classification and analysis of geometric figures and their angles.

2nd Grade - Addition and Subtraction Within 20

Students extend their knowledge of addition and subtraction within 20 to fluently add and subtract within 20 using various strategies. This work is put into practice as students solve add to, take from, and put together/take apart word problem types using tape diagrams and equations to represent what is happening mathematically.

3rd Grade - Rounding, Addition, and Subtraction

Students estimate quantities using rounding and develop fluency with the standard algorithm of addition and subtraction. Students focus on the precision of their calculations, and use them to solve real-world problems.

3rd Grade - Multiplication and Division, Part 1

Students begin to explore the concepts of multiplication and division, beginning in the context of equal group and array problems, moving to skip-counting and repeated addition, and ending with more complex and/or abstract problems.

2nd Grade - Adding and Subtracting Within 100

Students develop strategies based on place value, properties of operations, and the operational relationship between addition and subtraction to add and subtract within 100 fluently. Students will use these strategies to add up to four two-digit numbers and explain why these strategies work. Students also explore categorical data. 

3rd Grade - Multiplication and Division, Part 2

Students deepen their understanding of multiplication and division, including their properties and extending their study of factors to include all units from 0 to 10, as well as multiples of 10 within 100.

2nd Grade - Adding and Subtracting Within 1,000

Students add and subtract within 1,000 using strategies based on place value, properties of operations, and the operational relationship between addition and subtraction in order to add and subtract within 1,000. Students will use these strategies to add up to two 3-digit numbers concretely, pictorially and abstractly and explain why these strategies work. 

2nd Grade Math - Unit 2: Adding and Subtracting Within 100 - Lesson 1

Add and subtract 1 and 10 to or from two-digit numbers.

2nd Grade Math - Unit 2: Adding and Subtracting Within 100 - Lesson 2

Add and subtract multiples of 1 or multiples of 10 to or from two-digit numbers.

2nd Grade Math - Unit 2: Adding and Subtracting Within 100 - Lesson 4

Add within 100 in cases that require composing a ten, comparing that to cases that do not compose a ten.

2nd Grade Math - Unit 2: Adding and Subtracting Within 100 - Lesson 5

Add within 100 in cases that require composing a ten, recording that work with equations.

2nd Grade Math - Unit 2: Adding and Subtracting Within 100 - Lesson 6

Add within 100, recognizing when a ten will be composed.

2nd Grade Math - Unit 2: Adding and Subtracting Within 100 - Lesson 7

Subtract within 100 by using a ten to help.

3rd Grade Math - Unit 2: Multiplication and Division, Part 1 - Lesson 7

Demonstrate the commutativity of multiplication.

3rd Grade Math - Unit 1: Rounding, Addition, and Subtraction - Lesson 8

Add numbers with up to one composition within 1,000.

2nd Grade Math - Unit 2: Adding and Subtracting Within 100 - Lesson 8

Subtract within 100 in cases that do not involve decomposing a ten

2nd Grade Math - Unit 2: Adding and Subtracting Within 100 - Lesson 9

Subtract a one-digit number from a two-digit number in cases that require decomposing a ten.

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