Unit 4

From Hundredths to Hundred-Thousands

Section A

Decimals with Tenths and Hundredths

Decimal Numbers

Let’s learn about decimals.

Equivalent Decimals

Let’s think about equivalent decimals.

Decimals on Number Lines

Let’s compare some decimals.

Compare and Order Decimals

Let’s put some decimals in order.

Compare and Order Decimals in Different Notations

Let’s put decimals in order.

Section A Practice Problems

Section A

Decimals with Tenths and Hundredths

Decimal Numbers

Let’s learn about decimals.

Equivalent Decimals

Let’s think about equivalent decimals.

Decimals on Number Lines

Let’s compare some decimals.

Section B

Place Value Relationships through 1,000,000

How Much Is 10,000?

Let’s represent 10,000.

Numbers Within 100,000

Let’s read, write, and represent multi-digit numbers.

Beyond 100,000

Let’s read, write, and represent numbers beyond 100,000.

Same Digit, Different Value

Let’s describe the relationship between the digits in multi-digit numbers.

Ten Times As Much

Let's write equations to show the relationship between the digits in multi-digit numbers.

Large Numbers on a Number Line

Let’s locate multi-digit numbers on a number line.

Section B Practice Problems

Section B

Place Value Relationships through 1,000,000

How Much Is 10,000?

Let’s represent 10,000.

Numbers Within 100,000

Let’s read, write, and represent multi-digit numbers.

Beyond 100,000

Let’s read, write, and represent numbers beyond 100,000.

Section C

Compare, Order, and Round

Compare Multi-Digit Numbers

Let’s compare large numbers.

Order Multi-Digit Numbers

Let’s put some multi-digit numbers in order.

Multiples of 10,000 and 100,000

Let’s explore multiples of 1,000, 10,000, and 100,000 and how other numbers relate to them.

The Nearest Multiples of 1,000, 10,000, and 100,000

Let’s find multiples of 1 thousand, 10 thousand, and 100 thousand that are the nearest to a number.

Round Numbers

Let’s round some large numbers.

Apply Rounding

Let’s round large numbers to learn about situations and solve problems.

Section C Practice Problems

Section C

Compare, Order, and Round

Compare Multi-Digit Numbers

Let’s compare large numbers.

Order Multi-Digit Numbers

Let’s put some multi-digit numbers in order.

Multiples of 10,000 and 100,000

Let’s explore multiples of 1,000, 10,000, and 100,000 and how other numbers relate to them.

Section D

Add and Subtract

Standard Algorithm to Add and Subtract

Let’s find sums and differences of large numbers.

Compose and Decompose to Add and Subtract

Let’s compose and decompose units to add and subtract.

Add and Subtract within 1,000,000

Let’s use the standard algorithm to add and subtract.

Zeros in the Standard Algorithm

Let’s subtract from numbers with several zeros.

Solve Problems Involving Large Numbers

Let’s solve problems by adding and subtracting.

Bees are Buzzing

Let’s investigate insect populations.

Section D Practice Problems

Section D

Add and Subtract

Standard Algorithm to Add and Subtract

Let’s find sums and differences of large numbers.

Compose and Decompose to Add and Subtract

Let’s compose and decompose units to add and subtract.

Add and Subtract within 1,000,000

Let’s use the standard algorithm to add and subtract.

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From Hundredths to Hundred-Thousands

Decimals with Tenths and Hundredths

Decimal Numbers

Equivalent Decimals

Decimals on Number Lines

Compare and Order Decimals

Compare and Order Decimals in Different Notations

Section A Practice Problems

Decimals with Tenths and Hundredths

Decimal Numbers

Equivalent Decimals

Decimals on Number Lines

Place Value Relationships through 1,000,000

How Much Is 10,000?

Numbers Within 100,000

Beyond 100,000

Same Digit, Different Value

Ten Times As Much

Large Numbers on a Number Line

Section B Practice Problems

Place Value Relationships through 1,000,000

How Much Is 10,000?

Numbers Within 100,000

Beyond 100,000

Compare, Order, and Round

Compare Multi-Digit Numbers

Order Multi-Digit Numbers

Multiples of 10,000 and 100,000

The Nearest Multiples of 1,000, 10,000, and 100,000

Round Numbers

Apply Rounding

Section C Practice Problems

Compare, Order, and Round

Compare Multi-Digit Numbers

Order Multi-Digit Numbers

Multiples of 10,000 and 100,000

Add and Subtract

Standard Algorithm to Add and Subtract

Compose and Decompose to Add and Subtract

Add and Subtract within 1,000,000

Zeros in the Standard Algorithm

Solve Problems Involving Large Numbers

Bees are Buzzing

Section D Practice Problems

Add and Subtract

Standard Algorithm to Add and Subtract

Compose and Decompose to Add and Subtract

Add and Subtract within 1,000,000

Have a correction or suggestion?

Unit 4 Resources

Compare and Order Decimals

Compare and Order Decimals in Different Notations

Same Digit, Different Value

Ten Times As Much

Large Numbers on a Number Line

The Nearest Multiples of 1,000, 10,000, and 100,000

Round Numbers

Apply Rounding

Zeros in the Standard Algorithm

Solve Problems Involving Large Numbers

Bees are Buzzing

Compare, Order, and Round

Compare Multi-Digit Numbers

Order Multi-Digit Numbers

Multiples of 10,000 and 100,000

The Nearest Multiples of 1,000, 10,000, and 100,000

Round Numbers

Apply Rounding

Section C Practice Problems

Add and Subtract

Standard Algorithm to Add and Subtract