Solved Exercises on Decision Financial Services in Grade 3

Master financial decision making: budgeting, saving, spending choices, financial planning through these 5 detailed exercises.

Solution: Exercises 1 to 3
1 Budget Planning
Exercise 1
Sarah has $20 to spend. She wants to buy a book for $8, a toy for $6, and candy for $5. Does she have enough money? How should she decide what to buy?
Definition:

Budget planning: Deciding how to spend money wisely within available funds

Budget planning method:
  1. Identify total available money
  2. List desired purchases and their costs
  3. Add up the costs of desired items
  4. Compare total cost to available money
  5. Make decisions about what to buy based on priorities
Available Money
$20
Total Cost
$8 + $6 + $5
Total
$19
Step 1: Identify available money

Sarah has $20

Step 2: List desired purchases

Book: $8

Toy: $6

Candy: $5

Step 3: Calculate total cost

$8 + $6 + $5 = $19

Step 4: Compare to available money

$19 < $20, so she has enough money

Step 5: Make purchasing decisions

She can buy all items and have $1 left over

Financial Decision Strategy

Always prioritize needs over wants. Books are important for learning, toys provide entertainment, and candy is a treat. Sarah might want to consider buying the book first, then deciding about the toy and candy based on remaining money.

Final answer:

Yes, Sarah has enough money. She can buy all items and have $1 left over.

Applied rules:

• Budget constraint: Total spending cannot exceed available money

• Addition: Add all costs to find total needed

• Comparison: Compare total cost to available funds

2 Saving vs Spending Decision
Exercise 2
Tom gets $5 per week for allowance. He wants to buy a $20 game next month. Should he save all his allowance or spend some on smaller items? How many weeks will it take to save for the game?
Definition:

Saving vs spending: Deciding whether to keep money for future purchases or spend it now

Weekly Allowance
$5
Game Cost
$20
Weeks Needed
$20 ÷ $5 = 4 weeks
Step 1: Identify weekly income

Tom receives $5 per week

Step 2: Identify target purchase

Game costs $20

Step 3: Calculate weeks needed

$20 ÷ $5 = 4 weeks

Step 4: Make saving decision

Tom needs to save for 4 weeks to buy the game

Step 5: Consider trade-offs

If Tom spends $2 per week on snacks, he'll save $3 per week, requiring $20 ÷ $3 = 6.67 weeks ≈ 7 weeks

Financial Decision Strategy

Consider the opportunity cost of spending now versus saving for something bigger later. Tom could save all his allowance for 4 weeks to get the game, or spend some and save for 7 weeks. The choice depends on his priorities.

Save all: 4 weeks
vs
Save partially: 7 weeks
Final answer:

Tom needs 4 weeks to save for the game if he saves all his allowance, or 7 weeks if he spends $2 per week on snacks.

Applied rules:

• Division: Time needed = Total cost ÷ Savings per period

• Opportunity cost: What you give up by choosing one option over another

• Time value: Delaying gratification for a better outcome

3 Comparing Purchase Options
Exercise 3
Emma has $15 to spend. Store A sells a toy for $12 with a $2 discount coupon. Store B sells the same toy for $13. Which store offers the better deal?
Definition:

Comparative shopping: Evaluating different options to make the best financial decision

Store A Price
$12 - $2 = $10
Store B Price
$13
Better Deal
$10 < $13
Step 1: Calculate Store A price

Original price: $12

Discount: $2

Final price: $12 - $2 = $10

Step 2: Note Store B price

Price at Store B: $13

Step 3: Compare prices

$10 < $13

Step 4: Make decision

Store A offers the better deal

Financial Decision Strategy

Always calculate the final price after discounts, taxes, and fees. Look for promotional offers and compare total costs, not just sticker prices. Consider additional factors like location convenience and return policies.

Store A: $10
<
Store B: $13
Final answer:

Store A offers the better deal at $10 compared to Store B's $13.

Applied rules:

• Net price calculation: Subtract discounts from original price

• Comparison: Compare final prices after all adjustments

• Value maximization: Choose the option that gives the most value for money

Financial Decision Making Rules and Methods
\text{Net Savings} = \text{Income} - \text{Expenses}
Savings Calculation
Financial Service Types
Banking
Storing and managing money safely
Financial Service Types
Budgeting
Planning how to spend money
Financial Service Types
Saving
Keeping money for future use
Financial Service Types
Investing
Using money to earn more money
Banking Services

Safe places to store money, earn interest, and access funds when needed. Banks offer savings accounts, checking accounts, and loans.

Investment Services

Ways to make money grow over time, though with some risk. Examples include stocks, bonds, and mutual funds.

Credit Services

Allowing people to borrow money to buy things now and pay later, with interest charges.

Key definitions:

Income: Money received (allowance, gift money, etc.)

Expenses: Money spent (on items, activities, etc.)

Savings: Money kept aside for future use

Needs: Things you must have to live (food, shelter)

Wants: Things you would like to have but don't need

Opportunity cost: What you give up when choosing one option over another

Financial Decision-Making Process:
  1. Assess resources: How much money do you have available?
  2. Identify goals: What do you want to achieve?
  3. Evaluate options: What are your choices?
  4. Calculate costs: What will each option cost?
  5. Make decision: Choose the best option for your situation
  6. Review outcome: Did the decision work out as expected?
Tip 1: Always make a list of needs vs wants before spending.
Tip 2: Save some money for unexpected expenses.
Tip 3: Compare prices before making purchases.
Tip 4: Wait 24 hours before buying expensive items to avoid impulse purchases.
Common financial mistakes: Spending more than you have, not saving for emergencies, impulsive buying.
Good financial habits: Tracking expenses, setting savings goals, comparing prices, planning purchases.
Financial decision-making principles:

• Spending rule: Don't spend more than you have

• Saving rule: Set aside money regularly

• Priority rule: Buy needs before wants

• Comparison rule: Look for the best value

Detailed Summary: Decision Financial Services

Core Concepts:

  • Financial Literacy: Understanding how money works and making smart decisions about earning, spending, saving, and sharing money
  • Decision Making: The process of choosing between different financial options
  • Financial Services: Services that help people manage their money, including banking, saving, investing, and credit
  • Money Management: Planning how to use money wisely

Types of Financial Services:

  • Banking Services: Safe storage of money, checking/savings accounts, debit/credit cards
  • Investment Services: Ways to make money grow over time
  • Credit Services: Borrowing money with interest
  • Insurance Services: Protection against financial loss

Financial Decision-Making Steps:

  1. Identify your financial situation (income, expenses, savings)
  2. Set financial goals (short-term and long-term)
  3. Research and evaluate options
  4. Calculate costs and benefits
  5. Make the decision
  6. Monitor and adjust as needed

Examples:

  • Simple: Deciding between buying a toy now or saving for a bigger item
  • Medium: Creating a budget for monthly allowance
  • Advanced: Comparing different savings account options

Tips and Tricks:

  • Always compare prices before buying
  • Save a portion of any money received
  • Wait before making big purchases to avoid impulse buying
  • Keep track of your money coming in and going out
  • Ask trusted adults for financial advice

Key Notes for Memorization:

  • "Needs before wants" - buy essentials first
  • Always plan before spending
  • Saving helps you afford bigger purchases later
  • Compare options to get the best value
  • Financial decisions affect your future
Solution: Exercises 4 to 5
4 Choosing Payment Methods
Exercise 4
Alex has $25 in cash and a $30 gift card. He wants to buy a $28 item. Should he use cash or the gift card? What are the advantages of each option?
Definition:

Payment method selection: Choosing the most appropriate way to pay for goods or services

Cash Available
$25
Gift Card
$30
Item Cost
$28
Step 1: Evaluate payment options

Cash option: Spend $25 cash, keep $30 gift card

Gift card option: Spend $28 from gift card, keep $25 cash

Step 2: Analyze advantages of cash

Keeps gift card balance intact for future use

May encourage spending only what you have

Step 3: Analyze advantages of gift card

Saves cash for other purchases

Uses up gift card balance that might expire

Step 4: Make recommendation

Using the gift card is better because it preserves cash and uses the gift card

Financial Decision Strategy

When multiple payment methods are available, consider: 1) Which method helps preserve liquid cash? 2) Which method uses up resources that might expire? 3) Which method fits your financial goals? In this case, using the gift card preserves cash and prevents gift card waste.

Cash: $25
vs
Gift Card: $30
Final answer:

Alex should use the gift card to pay for the $28 item, preserving his $25 cash and using the gift card.

Applied rules:

• Resource optimization: Use resources that are less critical to preserve

• Opportunity cost: Consider what you gain/lose with each payment method

• Liquidity management: Preserve cash when possible

5 Opportunity Cost Analysis
Exercise 5
Mia has $50. She can either buy a video game for $40 or go to an amusement park for $45. If she chooses the amusement park, what is the opportunity cost? Which option should she choose?
Definition:

Opportunity cost: The value of the next best alternative that you give up when making a choice

Option 1
Video Game: $40
Option 2
Amusement Park: $45
Opportunity Cost
$40 (video game)
Step 1: Identify the options

Video game: $40

Amusement park: $45

Step 2: Calculate opportunity cost of choosing amusement park

If Mia chooses the amusement park, she gives up the video game

Opportunity cost = $40 (the video game)

Step 3: Compare total satisfaction

Consider which option provides more value or enjoyment

Step 4: Analyze remaining money

Amusement park: $50 - $45 = $5 remaining

Video game: $50 - $40 = $10 remaining

Financial Decision Strategy

Consider both the immediate benefit and the opportunity cost of each option. Ask yourself: Which choice gives me the most value for my money? Also consider non-monetary factors like enjoyment, memories, and personal preferences. The best financial decision balances cost with satisfaction.

Amusement Park: $45
vs
Video Game: $40
Final answer:

If Mia chooses the amusement park, the opportunity cost is the video game ($40). Her choice depends on which option provides more value to her.

Applied rules:

• Opportunity cost principle: Every choice involves giving up alternatives

• Value assessment: Consider both monetary and non-monetary benefits

• Trade-off analysis: Weigh the pros and cons of each option

Questions & Answers

Question: How do I know if something is a need or a want? Sometimes I think everything is a need!

Answer: Great question! Here's how to distinguish between needs and wants:

  • Needs: Things you must have to survive and stay healthy - food, water, shelter, clothing, medicine
  • Wants: Things you would like to have but aren't essential - toys, games, treats, fancy clothes

Test question: "Could I live without this?" If yes, it's likely a want. If no, it's a need.

Example: Food is a need, but candy is a want. A basic shirt is a need, but a designer shirt is a want.

Question: Is it better to save money or spend it? My friends say spend it, but my parents say save it.

Answer: The best approach is balance! Here's a good rule for kids:

  • Save some: Put aside 20% of your money for future goals
  • Spend some: Use 70% for needs and reasonable wants
  • Share some: Give 10% to help others if possible

This way, you enjoy life now while preparing for the future. Saving helps you afford bigger things later, but spending on needs and some wants brings happiness now.

The key is making thoughtful decisions about how to divide your money.

Question: How do I make a budget? It sounds too complicated for me.

Answer: Budgeting is simpler than it sounds! Try this kid-friendly method:

  1. Track your money: Write down all money you receive (allowance, gifts)
  2. List your spending: Write down what you want to buy
  3. Check if you have enough: Add up costs and compare to money you have
  4. Make choices: Decide what's most important to you

You can use a simple notebook or draw pictures to track your money. The goal is just to make sure you don't spend more than you have!

Example: If you get $10 and want to buy a $6 toy and save $4, that works perfectly!

Question: What is a bank and why should I put my money there instead of keeping it at home?

Answer: A bank is like a super-safe place for your money with extra benefits:

  • Safety: Your money is protected from being lost, stolen, or damaged
  • Growth: Banks often pay you extra money (interest) for keeping money there
  • Convenience: Easy to deposit and withdraw money when needed
  • Learning: Banks teach you how to manage money responsibly

Think of a bank like a safety deposit box that pays you to use it! While keeping money at home is okay for small amounts, banks offer protection and growth opportunities.

Many banks have special accounts just for kids to learn about money.

Question: What if I make a bad financial decision? Will I mess up my finances forever?

Answer: Don't worry! Everyone makes financial mistakes, especially when learning:

  • Small mistakes are lessons: Buying something you didn't really need teaches you to think before spending
  • Recovery is possible: You can always make better decisions next time
  • Practice builds skills: Each decision makes you wiser
  • Start early: Learning to manage money now prepares you for bigger decisions later

The important thing is to reflect on your choices and learn from them. Financial literacy comes with practice and experience.

Ask trusted adults for advice when facing big financial decisions!