# Lesson 18 Money Problems

• Let’s solve problems with money.

## Warm-up How Many Do You See: Groups of Coins

How many coins do you see? How do you see them?

items

cost

pack of pencils

pencil sharpener

eraser

pens

## Problem 1

Lin has these coins:

1. How much money does Lin have for supplies?

2. If Lin buys an eraser, how much money will she have left? Show your thinking.

## Problem 2

Diego has these coins:

1. How much money does Diego have for supplies?

2. If Diego buys a pack of pencils, how much money will he have left? Show your thinking.

## Activity 2 Shop with a Dollar

Show your thinking for each problem.

supplies

cost

notebooks

colored pencils

pencil box

glue stick

## Problem 1

Clare wants to buy a pencil box and colored pencils.

1. How much money will it cost?

## Problem 3

Andre has \$1. He wants to buy a glue stick, a pencil box, and colored pencils. Does Andre have enough money?

## Problem 1

Mai has 92 cents. She gives Lin 38 cents. How many cents does Mai have now?