# Lesson 6 Multiply Two-digit Numbers and One-digit Numbers

Let’s multiply two-digit and one-digit numbers.

## Warm-up Notice and Wonder: With and Without a Grid

What do you notice? What do you wonder?

## Activity 1 Tyler’s Diagrams

## Problem 1

To find the value of

Where is the 36 in Tyler’s diagram?

Where is the 4 in Tyler’s diagram?

What is the value of

?

## Problem 2

Here is a diagram Tyler made to find the value of

Explain or show how his diagram helps him find the value of

## Activity 2 Two Kinds of Diagrams

## Problem 1

Priya drew a base-ten diagram to multiply

Where do you see 6 and 53 in her diagram?

Where do you see 300 and 18 in Priya’s diagram? What do they represent?

## Problem 2

Han drew this diagram to multiply

Where do you see 300 and 18 in his diagram? What do they represent?

Which diagram do you prefer for multiplying

: Han’s way or Priya’s way? Explain your reasoning. Find the value of

.

## Problem 3

Draw a diagram to represent each multiplication expression. Then, find the value of each product.

## Practice Problem

## Problem 1

Find the value of