This mathematical puzzle will Putting your brain to the test: Ready for the challenge?
Practice step by step (3/10)
No need to get into Very complicated calculations. Initially, the simple basic operations, such as addition or subtractions, is already an excellent exercise. Then, by acquiring intellectual agility, it will be possible to calculate in your head more complicated operations.
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How do you calculate 7 x 7 / 7 - 1 + 7 quickly? (4/10)
So, are you ready to take on the challenge we offer you today? It involves calculating an operation in a limited time. How much is 7 x 7 / 7 - 1 + 7? This operation seems very complicated to solve, and yet it can be calculated in just a few seconds.
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For example,
For example,
A rule to know (5/10)
To solve the operation, you don't need a calculator. All you need is to know simple calculation rules. In fact, to successfully solve an operation such as 7 x 7 / 7 - 1 + 7, you simply need to master the order of operations.
