Actually the world is more or less ending because of that. People lack more and more critical thinking skills because they aren't taught about that in school.
Sure multiplying 3-digit numbers is not really useful in everyday's life, but the important part is not the knowledge itself, it's the capacity to think and solve problems.
Sure multiplying 3-digit numbers is not really useful in everyday's life, but the important part is not the knowledge itself, it's the capacity to think and solve problems.