Curriculum / Math / 3rd Grade / Unit 1: Rounding, Addition, and Subtraction / Lesson 7

Rounding, Addition, and Subtraction

Lesson 7

Math

Unit 1

3rd Grade

Lesson 7 of 14

Objective

Round multi-digit numbers to any place in more complex cases, including those involving real-world contexts and/or assessing the reasonableness of that estimate.

Lesson Map

Topic A: Foundations of Place Value

Lesson

Use counting, place value understanding, and addition/subtraction of ones and tens to complete a partially filled-in number grid.

Standards

3.NBT.A.13.NBT.A.2

Lesson

Represent three-digit numbers using concrete manipulatives and drawings, including cases with more than 9 of any unit.

Standards

3.NBT.A.13.NBT.A.2

Lesson

Locate three-digit numbers on a number line and explain their placement.

Standards

3.NBT.A.1

Topic B: Rounding to the Nearest Ten and Hundred

Lesson

Define estimation and its purpose. Round two-digit numbers to the nearest ten using a number line.

Standards

3.NBT.A.1

Lesson

Round three-digit numbers to the nearest hundred using a number line.

Standards

3.NBT.A.1

Lesson

Round three-digit numbers to the nearest ten using a number line.

Standards

3.NBT.A.1

Lesson

Round multi-digit numbers to any place in more complex cases, including those involving real-world contexts and/or assessing the reasonableness of that estimate.

Standards

3.NBT.A.1