Neighbor: Hey, did you know that you can buy virtual currencies and items within some apps? I just saw my cousin talking about it.
You: Oh yeah, those are called in-app purchases. They can be pretty convenient, but you have to be careful not to overspend.
Neighbor: Yeah, that's true. I wonder how they calculate the prices though. Like, do they use fractions or decimals?
You: That's a good question. In most cases, in-app purchases are calculated using decimals. Decimals are a way of representing fractions and can make calculations easier.
Neighbor: I remember learning about decimals in school, but I'm a bit rusty. Can you give me an example of how decimals are used in these calculations?
You: Sure, let's say your cousin wants to buy virtual currency worth $5 and the exchange rate is $0.25 for 1 unit of currency. To find out how much your cousin needs to spend, we can multiply the number of units by the exchange rate using decimals.
Neighbor: Got it. So it would be 5 x 0.25?
You: Exactly! Multiplying 5 by 0.25 gives you 1.25. So your cousin would need to spend $1.25 to get the desired amount of virtual currency.
Neighbor: That makes sense. So, in these calculations, we use decimals to represent the fractions and then multiply them to find the final amount.
You: Exactly! Decimals are a convenient way to represent fractions when dealing with money. Just remember to carefully check the exchange rate and do the calculations correctly to avoid overspending.
Neighbor: Thanks for explaining that. It's good to understand how these in-app purchases work.
You: No problem! It's always helpful to understand the math behind these transactions to make more informed decisions. If you have any more questions, feel free to ask!
Multiply fractions and decimals discussion
Imagine that your neighbor is scrolling through social media. Your cousin is considering making an in-app purchase. Use the information provided to complete the discussion
1 answer