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?
Activity 1 Shop for School Supplies
items | cost |
---|---|
pack of pencils | |
pencil sharpener | |
eraser | |
pens |
Problem 1
Lin has these coins:
How much money does Lin have for supplies?
If Lin buys an eraser, how much money will she have left? Show your thinking.
Problem 2
Diego has these coins:
How much money does Diego have for supplies?
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.
How much money will it cost?
Clare has $1. How much will she have left?
Problem 2
Tyler wants to buy a notebook and a pencil box. He has $1. How much will he have left?
Problem 3
Andre has $1. He wants to buy a glue stick, a pencil box, and colored pencils. Does Andre have enough money?
Practice Problem
Problem 1
Mai has 92 cents. She gives Lin 38 cents. How many cents does Mai have now?