Or, if you have a coupon that gives you 20% off on any item at a store, and you buy a jacket that costs 45beforetax,andthesalestaxis845 - (45x0.2)=36. Then, find the sales tax amount: 36x0.08=2.88. Finally, add the sale price and the sales tax amount: 36+2.88 = $38.88.
- Anna wants to buy a new bike that costs 250.Shehassaved120 so far, and she earns $10 every week for doing chores. How many more weeks does she need to save to buy the bike?
Solution: To solve this problem, find out how much more money Anna needs to buy the bike and then divide that by her weekly income. We can use subtraction and division to do this.
250−120 = $130
130/10 = 13
Anna needs 13 more weeks to save enough money for the bike.
- Ben has a lemonade stand. He sells each cup of lemonade for 50 cents. He spends 20 cents on each cup for the ingredients. How much profit does he make for each cup of lemonade he sells?
Solution: To solve this problem, we need to find out how much money Ben earns and how much he spends for each cup of lemonade, then subtract the cost from the revenue. We can use multiplication and subtraction to do this.
0.50x1=0.50 (revenue)
0.20x1=0.20 (cost)
0.50−0.20 = $0.30 (profit)
Ben makes 30 cents of profit for each cup of lemonade he sells.
- Charlie has a piggy bank with 15init.Hewantstobuyavideogamethatcosts60. His parents agree to pay half of the price if he pays the other half. How much more money does Charlie need to save to buy the video game?
Solution: To solve this problem, we need to find out how much money Charlie's parents will pay and how much Charlie has to pay, and then subtract what he already has from what he needs. We can use division and subtraction to do this.
60/2=30 (Charlie's parents' share)
60/2=30 (Charlie's share)
30−15 = $15
Charlie needs $15 more to buy the video game.
- Dani has a coupon that gives her 20% off any item at the bookstore. She wants to buy a book that costs $12. How much will she pay for the book after using the coupon?
Solution: To solve this problem, we need to find out how much money Dani will save with the coupon and how much she will pay after applying the discount. We can use multiplication and subtraction to do this.
12x0.20=2.40 (discount amount)
12−2.40 = $9.60 (final price)
Dani will pay $9.60 for the book after using the coupon.
- Ella wants to buy a necklace that costs 18.Shehasthreebillsinherwallet:a10 bill, a 5bill,anda1 bill. How much change will she get back if she pays with these bills?
To solve this problem, we need to find out how much Ella has in total and how much she will spend on the necklace, then subtract the price from the amount. We can use addition and subtraction to do this.
10+5 + 1=16 (total amount)
18−16 = $2 (change amount)
Ella will get back $2 in change if she pays with these bills.
- Frank has a jar of coins. He has 12 quarters, 15 dimes, 18 nickels, and 20 pennies in it. How much money does he have in total?
To solve this problem, we will determine how much each type of coin is worth and add up the total. We can use multiplication and addition to do this.
0.25x12=3 (quarters)
0.10x15=1.50 (dimes)
0.05x18=0.90 (nickels)
0.01x20=0.20 (pennies)
3+1.50 + 0.90+0.20 = $5.60 (total amount)
Frank has $5.60 in his jar of coins.
- Grace wants to split a pizza with her two friends, Hannah and Isla. The pizza costs $12 and has 8 slices. How much should each person pay if they share the pizza equally?
To solve this problem, we need to find out how many slices each person gets and how much each slice costs, then multiply the cost by the number of slices. We can use division and multiplication to do this.
8 / 3 = 2.67 (slices per person)
12/8=1.50 (cost per slice)
1.50x2.67=4.01 (cost per person)
Each person should pay $4.01 if they share the pizza equally.
- Jack has a paper route. He delivers 40 newspapers daily and gets paid 0.25foreach.Healsogetsa5 bonus every week. How much money does he make in a month (30 days)?
To solve this problem, we need to determine how much money Jack makes per day, week, and month and then add the amounts. We can use multiplication and addition to do this.
0.25x40=10 (daily income)
10x7=70 (weekly income)
70+5 = $75 (weekly income with bonus)
75x4=300 (monthly income)
Jack makes $300 a month.
- Kelly wants to buy a pair of jeans that costs $40. She has a coupon that gives her 15% off any item at the clothing store. She will also pay an 8% sales tax on the final price. How much will she pay for the jeans after using the coupon and paying the tax?
Solution: To solve this problem, we need to find out how much money Kelly will save with the coupon, how much she will pay before tax, and how much tax she will pay, and then add up the amounts. We can use multiplication and addition to do this.
40x0.15=6 (discount amount)
40−6 = $34 (price before tax)
34x0.08=2.72 (tax amount)
34+2.72 = $36.72 (final price)
Kelly will pay $36.72 for the jeans after using the coupon and paying the tax.
- Leo has a budget of 100forhisbirthdayparty.Hewantstoinvite10friendsandbuythempizza,cake,icecream,anddrinks.Heestimatesthateachpizzawillcost12, each cake will cost 15,eachgallonoficecreamwillcost6, and each liter of soda will cost $2. How many pizzas, cakes, ice creams, and sodas can he buy without going over his budget?
Solution: To solve this problem, we need to find out how much money Leo will spend on each item and how many items he can buy with his budget, then compare the amounts. We can use multiplication and division to do this.
12x1=12 (one pizza)
15x1=15 (one cake)
6x1=6 (one gallon of ice cream)
2x1=2 (one liter of soda)
100/12 = 8.33 (maximum number of pizzas)
100/15 = 6.67 (maximum number of cakes)
100/6 = 16.67 (maximum number of ice creams)
100/2 = 50 (maximum number of sodas)
One possible solution is to buy 8 pizzas, 1 cake, 2 gallons of ice cream, and 10 liters of soda.
12x8=96 (cost of pizzas)
15x1=15 (cost of cake)
6x2=12 (cost of ice cream)
2x10=20 (cost of soda)
96+15 + 12+20 = $143 (total cost)
However, this solution exceeds Leo's budget by $43, so he needs to reduce some items or find cheaper alternatives.
Another possible solution is to buy 6 pizzas, 1 cake, 1 gallon of ice cream, and 12 liters of soda.
12x6=72 (cost of pizzas)
15x1=15 (cost of cake)
6x1=6 (cost of ice cream)
2x12=24 (cost of soda)
72+15 + 6+24 = $117 (total cost)
This solution is within Leo's budget by $17, so he can either save the money or buy more items if he wants.
There may also be other possible solutions, as long as they are within Leo's budget.
These money math questions are fun, engaging, and challenging. They will help you develop 5th graders’ math, critical thinking, and financial literacy skills.