Curriculum / Math / 2nd Grade / Unit 5: Adding and Subtracting Within 1,000 / Lesson 13

Adding and Subtracting Within 1,000

Lesson 13

Math

Unit 5

2nd Grade

Lesson 13 of 25

Objective

Use constant difference to subtract by subtracting multiples of ten or a hundred.

Student-Facing

I can make a friendly number to subtract multiples of ten or hundred.

Lesson Map

Topic A: Adding with Mental Strategies

Lesson

Mentally add 10 and 100 to numbers within 1,000.

Standards

2.NBT.B.8

Lesson

Add multiples of 10 and 100 to numbers within 1,000.

Standards

2.NBT.B.72.NBT.B.8

Lesson

Use the associative property to make a multiple of 100 or multiple of 10 to add.

Standards

2.NBT.B.7

Topic B: Adding within 1,000

Lesson

Use concrete manipulatives to add within 1,000.

Standards

2.NBT.B.7

Lesson

Use concrete manipulatives to add within 1,000 with up to one composition.

Standards

2.NBT.B.7

Lesson

Use concrete manipulatives to add within 1,000 with up to two compositions.

Standards

2.NBT.B.7

Lesson

Use place value drawings to add within 1,000 with up to one composition of a new unit.

Standards

2.NBT.B.7

Lesson

Use place value drawings to add within 1,000 with up to two compositions of a new unit.

Standards

2.NBT.B.7

Lesson

Use expanded form to add within 1,000.

Standards

2.NBT.B.7

Lesson

Relate addition with place value drawings to algorithms in situations with up to two compositions of a new ten or hundred.

Standards

2.NBT.B.7

Topic C: Subtracting with Mental Strategies

Lesson

Mentally subtract 10 and 100 from numbers within 1,000.

Standards

2.NBT.B.8

Lesson

Subtract multiples of 10 and 100 from numbers within 1,000.

Standards

2.NBT.B.72.NBT.B.8

Lesson

Use constant difference to subtract by subtracting multiples of ten or a hundred.

Standards

2.NBT.B.7

Topic D: Subtracting within 1,000

Lesson

Use concrete manipulatives to subtract within 1,000 with no decompositions.

Standards

2.NBT.B.7

Lesson

Use concrete manipulatives to subtract within 1,000 with up to one decomposition.

Standards

2.NBT.B.7

Lesson

Use concrete manipulatives to subtract within 1,000 with up to two decompositions.

Standards

2.NBT.B.7

Lesson

Use place value drawings to subtract within 1,000 with up to one decomposition.

Standards

2.NBT.B.7

Lesson

Use place value drawings to subtract within 1,000 with up to two decompositions.

Standards

2.NBT.B.7

Lesson

Use expanded form to subtract within 1,000.

Standards

2.NBT.B.7

Lesson

Relate subtraction with expanded form to the standard algorithm in situations with up to two decompositions of a ten or hundred.

Standards

2.NBT.B.7

Topic E: Story Problems and Explaining Addition and Subtracting Thinking

Lesson

Solve one-step word problems using strategies to solve within 100.

Standards

2.NBT.B.52.OA.A.1

Lesson

Solve two-step word problems using strategies to solve within 100.

Standards

2.NBT.B.52.OA.A.1

Lesson

Solve addition computations within 1,000 and explain strategies.

Standards

2.NBT.B.62.NBT.B.72.NBT.B.9

Lesson

Solve subtraction computations within 1,000 and explain strategies.

Standards

2.NBT.B.72.NBT.B.9

Lesson

Solve and explain strategies when adding and subtracting within 1,000.

Standards

2.NBT.B.72.NBT.B.9

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Adding and Subtracting Within 1,000

Objective

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Student-Facing

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