Unit 4

Wrapping Up Multiplication and Division with Multi-digit Numbers

Section A

Multi-digit Multiplication Using the Standard Algorithm

Estimate and Find Products

Let's estimate and calculate products.

Partial Products in Diagrams

Let's interpret diagrams that can help us find products.

Partial Products in Algorithms

Let’s find partial products.

Standard Algorithm: One-digit and Multi-digit Numbers, with Composing

Let’s use the standard algorithm to multiply multi-digit numbers by one-digit numbers.

Standard Algorithm: Multi-digit Numbers, without Composing

Let’s use the standard algorithm to multiply three-digit numbers by two-digit numbers.

Standard Algorithm: Multi-digit Numbers, with Composing

Let’s multiply with the standard algorithm and compose new units.

Build Multiplication Fluency

Let’s multiply multi-digit whole numbers, using the standard algorithm.

The Birds

Let’s solve multiplication problems.

Section A Practice Problems

Section A

Multi-digit Multiplication Using the Standard Algorithm

Estimate and Find Products

Let's estimate and calculate products.

Partial Products in Diagrams

Let's interpret diagrams that can help us find products.

Partial Products in Algorithms

Let’s find partial products.

Standard Algorithm: One-digit and Multi-digit Numbers, with Composing

Section B

Multi-digit Division Using Partial Quotients

World’s Record Folk Dance

Let’s explore division with multi-digit numbers.

Different Partial Quotients

Let’s use what we know about multiplication and place value to find quotients.

A Partial-Quotients Algorithm

Let’s make sense of a partial-quotients algorithm.

Divide, Using Partial Quotients

Let's use a partial-quotients algorithm to divide three-digit and four-digit dividends by two-digit divisors.

Practice a Partial-Quotients Algorithm

Let's practice using a partial-quotients algorithm.

Find Unknown Side Lengths

Let’s use the relationship between multiplication and division to solve problems.

World’s Record Noodle Soup

Let’s solve a problem with large numbers, using division.

Fractions as Partial Quotients

Let’s use fractions to help us divide whole numbers.

Section B Practice Problems

Section B

Multi-digit Division Using Partial Quotients

World’s Record Folk Dance

Let’s explore division with multi-digit numbers.

Different Partial Quotients

Let’s use what we know about multiplication and place value to find quotients.

A Partial-Quotients Algorithm

Let’s make sense of a partial-quotients algorithm.

Divide, Using Partial Quotients

Section C

Let’s Put It to Work

A Lot of Milk

Let's make estimates with big numbers.

Trash Talk

Let’s multiply to solve problems about the area of the Great Pacific Garbage Patch.

Shipping Trash

Let’s estimate volumes.

Food-Waste Journal

Let's use multiplication and division to think about food waste.

Section C Practice Problems

Section C

Let’s Put It to Work

A Lot of Milk

Let's make estimates with big numbers.

Trash Talk

Let’s multiply to solve problems about the area of the Great Pacific Garbage Patch.

Shipping Trash

Let’s estimate volumes.

Food-Waste Journal

Let's use multiplication and division to think about food waste.

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Wrapping Up Multiplication and Division with Multi-digit Numbers

Multi-digit Multiplication Using the Standard Algorithm

Estimate and Find Products

Partial Products in Diagrams

Partial Products in Algorithms

Standard Algorithm: One-digit and Multi-digit Numbers, with Composing

Standard Algorithm: Multi-digit Numbers, without Composing

Standard Algorithm: Multi-digit Numbers, with Composing

Build Multiplication Fluency

The Birds

Section A Practice Problems

Multi-digit Multiplication Using the Standard Algorithm

Estimate and Find Products

Partial Products in Diagrams

Partial Products in Algorithms

Standard Algorithm: One-digit and Multi-digit Numbers, with Composing

Multi-digit Division Using Partial Quotients

World’s Record Folk Dance

Different Partial Quotients

A Partial-Quotients Algorithm

Divide, Using Partial Quotients

Practice a Partial-Quotients Algorithm

Find Unknown Side Lengths

World’s Record Noodle Soup

Fractions as Partial Quotients

Section B Practice Problems

Multi-digit Division Using Partial Quotients

World’s Record Folk Dance

Different Partial Quotients

A Partial-Quotients Algorithm

Divide, Using Partial Quotients

Let’s Put It to Work

A Lot of Milk

Trash Talk

Shipping Trash

Food-Waste Journal

Section C Practice Problems

Let’s Put It to Work

A Lot of Milk

Trash Talk

Shipping Trash

Food-Waste Journal

Have a correction or suggestion?

Unit 4 Resources

Standard Algorithm: Multi-digit Numbers, without Composing

Standard Algorithm: Multi-digit Numbers, with Composing

Build Multiplication Fluency

The Birds

Practice a Partial-Quotients Algorithm

Find Unknown Side Lengths

World’s Record Noodle Soup

Fractions as Partial Quotients

Multi-digit Division Using Partial Quotients

World’s Record Folk Dance

Different Partial Quotients

A Partial-Quotients Algorithm

Divide, Using Partial Quotients

Practice a Partial-Quotients Algorithm

Find Unknown Side Lengths

World’s Record Noodle Soup

Fractions as Partial Quotients

Section B Practice Problems

Let’s Put It to Work

A Lot of Milk

Trash Talk

Shipping Trash

Food-Waste Journal

Section C Practice Problems

Multi-digit Multiplication Using the Standard Algorithm

Estimate and Find Products

Partial Products in Diagrams