# Unit 5: My Reflections

## Lesson 1: Using Decimals in a Shopping Context

• I can use decimals to make estimates and calculations about money.

## Lesson 2: Using Diagrams to Represent Addition and Subtraction

• I can use diagrams to represent and reason about addition and subtraction of decimals.
• I can use vertical calculations to represent and reason about addition and subtraction of decimals.
• I can use place value to explain addition and subtraction of decimals.

## Lesson 3: Adding and Subtracting Decimals with Few Non-Zero Digits

• I know how to solve subtraction problems with decimals that require “unbundling” or “decomposing.”
• I can tell whether writing or removing a zero in a decimal will change its value.

## Lesson 4: Adding and Subtracting Decimals with Many Non-Zero Digits

• I can solve problems that involve addition and subtraction of decimals.

## Lesson 5: Decimal Points in Products

• I can use place value and fractions to reason about multiplication of decimals.

## Lesson 6: Methods for Multiplying Decimals

• I know and can explain more than one way to multiply decimals using fractions and place value.
• I can use area diagrams to represent and reason about multiplication of decimals.

## Lesson 7: Using Diagrams to Represent Multiplication

• I can use area diagrams and partial products to represent and find products of decimals.

## Lesson 8: Calculating Products of Decimals

• I know how to use a product of whole numbers to find a product of decimals.
• I can describe and apply a method for multiplying decimals.

## Lesson 9: Using the Partial Quotients Method

• I can use the partial quotients method to find a quotient of two whole numbers when when the quotient is a whole number.

## Lesson 10: Using Long Division

• I can use long division to find a quotient of two whole numbers when when the quotient is a whole number.

## Lesson 11: Dividing Numbers that Result in Decimals

• I can use long division to find the quotient of two whole numbers when the quotient is not a whole number.

## Lesson 12: Dividing Decimals by Whole Numbers

• I know how multiplying both the dividend and the divisor by the same factor affects the quotient.
• I can divide a decimal by a whole number.
• I can explain the division of a decimal by a whole number in terms of equal-sized groups.

## Lesson 13: Dividing Decimals by Decimals

• I can find the quotient of two decimals.
• I can explain how multiplying dividend and divisor by the same power of 10 can help me find a quotient of two decimals.

## Lesson 14: Using Operations on Decimals to Solve Problems

• I can use addition, subtraction, multiplication, and division on decimals to solve problems.

## Lesson 15: Making and Measuring Boxes

• I can use the four operations on decimals to find surface areas and reason about real-world problems.