A math quiz for adults. Can you solve it?

Rule-Filling Quiz

A math quiz for elementary schoolers that's surprisingly tricky

The problem is: “16→23→28→38→49→62→70→?”.

Think of the number that goes in the question mark and give your answer.

To figure it out, you need to identify the rule from these seven numbers that increase little by little.

While they all increase, the increments vary: sometimes it goes up by 7, other times only by 5.

However, if you look closely, there’s a certain rule in how it increases…

The hint is to consider the ones and tens digits separately.

Now, can you uncover the rule?

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sasashina

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A math quiz with answers that can vary

Trivia about a math problem with divided answers #math #shortsfeed #03

What’s the answer to “9×9÷9×9”? The result changes depending on the order of operations.

How do you think it should be calculated correctly? Elementary school kids who are learning this in real time might come up with the answer right away.

But adults might find themselves thinking, “Huh? Where do I start the calculation?” Should you go from left to right, or do the multiplications first? Please think it through and try to find the answer.

Problems that look simple like this can really make you overthink, can’t they?

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sasashina

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Arithmetic Olympiad problem: “How many horse mackerel are there?”

[Challenging Math Quiz] Take on the challenge for elementary students! A Japan Math Olympiad-style problem that tests your mathematical sense: 'How many horse mackerel are there?' (IQ puzzle, brain training, mental exercise)

I can hardly believe this was a problem given to elementary school students—it makes me want to hold my head in my hands—but as an adult, I’d like to somehow use x and y and solve it faster than the kids.

That said, there really are quite a lot of items bought… How long does it take you adults to solve it?

Basic problems that we tend to forget surprisingly often

[Arithmetic/Math Quiz] Surprisingly Forgotten Basic Problems! 8 Questions in Total!

As the level of arithmetic and mathematics rises, things become more complex, and it’s easy to forget the basics.

These are problems designed to review the fundamentals related to arithmetic and mathematics, helping you recall what you’ve learned while connecting it to future applications.

Many of the questions focus on terms that appear in mathematics, and the less frequently a term is used in later fields, the more likely it is to be forgotten.

Let’s revisit what each term represents and in what situations it is used, reflect on what we’ve learned so far, and deepen our interest in mathematics.

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kappamaki

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Three problems on area

[Arithmetic Quiz] Looks simple but surprisingly tricky! Three problems on the area of rectangles that feel great to solve—requires a change of perspective. [Area Quiz]

This is a video featuring only problems about area in arithmetic.

The problems use nothing more than the kinds of arithmetic expressions you learned in elementary school.

And yet, despite seeming simple, they’re tricky and can really make you think.

Take your time and try solving the problems.