# Lesson 15 Solve Story Problems With Three Numbers

Let’s solve story problems with 3 numbers.

## Warm-up How Many Do You See: 10-frames

How many do you see?

How do you see them?

## Activity 1 Louis Agassiz Fuertes’s Birds

7 blue birds fly in the sky.

8 brown birds sit in a tree.

3 baby birds sit in a nest.

How many birds are there altogether?

Show your thinking using objects, drawings, numbers, or words.

Equation:

## Activity 2 Fuertes’s Bird Cards

## Problem 1

Noah collected 3 bird picture cards.

Clare collected 4 cards.

Jada collected 7 cards.

How many cards did they collect altogether?

Show your thinking using drawings, numbers, or words.Equation:

Jada used her cards to name the birds she saw.

She saw 4 orioles.

She saw 2 goldfinches.

She saw 8 sparrows.

How many birds did Jada see?

Show your thinking using drawings, numbers, or words.Equation:

Write your own problem.

We see some birds.

We see 9 .

We see 8 .

We see 1 .

How many birds do we see altogether?

Show your thinking using drawings, numbers, or words.Equation:

## Problem 2

Show your thinking using drawings, numbers, or words.

Show your thinking using drawings, numbers, or words.

## Practice Problem

## Problem 1

There are 5 bananas, 6 oranges, and 4 apples in a bowl.

How many pieces of fruit are in the bowl?

Show your thinking using objects, drawings, numbers, or words.

Equation: