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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 20

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In this Lesson

Objective
Standards
Criteria for Success
Tips for Teachers
Warm Up (10 min)
Anchor Tasks (25–35 min)
Problem Set (10–20 min)
Target Task (5–10 min)
Additional Practice

Objective

Lesson Notes

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Subtract within 1,000 in cases that require decomposing a hundred.

Student-Facing

I can subtract within 1,000 by decomposing a hundred.

Lesson Map

Topic A: Addition and Subtraction with Multiples of Hundreds, Tens, or Ones

Lesson

Add and subtract 10 or 100 to or from three-digit numbers.

Standards

2.NBT.B.8

Lesson

Add and subtract multiples of 10 or 100 to or from three-digit numbers.

Standards

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

Lesson

Add and subtract within 1,000 without composition or decomposition by counting up or counting back.

Standards

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

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Topic B: Addition within 1,000

Lesson

Add within 1,000 by using a ten or hundred to make the computation easier.

Standards

2.NBT.B.7

Lesson

Add within 1,000 in cases where there are no compositions of larger units or a composition of a ten.

Standards

2.NBT.B.7

Lesson

Add within 1,000 in cases that require composing a hundred.

Standards

2.NBT.B.7

Lesson

Add within 1,000 in cases that require composing a ten and a hundred.

Standards

2.NBT.B.7

Lesson

Add within 1,000 in all cases, relating their strategies to written methods.

Standards

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

Lesson

Add within 1,000 in all cases, recording that work using expanded form.

Standards

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

Lesson

Add within 1,000 and explain why strategies work.

Standards

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

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Topic C: Subtraction within 1,000

Lesson

Subtract within 1,000 by using a ten or hundred to make the computation easier.

Standards

2.NBT.B.7

Lesson

Subtract within 1,000 in cases with no decompositions or a decomposition of a ten.

Standards

2.NBT.B.7

Lesson

Subtract within 1,000 in cases that require decomposing a hundred.

Standards

2.NBT.B.7

Lesson

Subtract within 1,000 in cases that require decomposing a ten and a hundred, with all decompositions completed prior to subtracting.

Standards

2.NBT.B.7

Lesson

Subtract within 1,000 in all cases, relating their strategies to written methods.

Standards

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

Lesson

Subtract within 1,000 in all cases, recording that work using expanded form.

Standards

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

Lesson

Subtract within 1,000 and explain why strategies work.

Standards

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

Lesson

Solve addition and subtraction equations within 1,000 and explain why strategies work.

Standards

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

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Topic D: Story Problems

Lesson

Solve one- and two-step story problems involving addition and subtraction within 100.

Standards

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

Lesson

Solve a three-act task that involves a two-step story problem involving addition and subtraction within 100.

Standards

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

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