Mathematical Concepts and Problem Solving

This video tutorial tests mathematical skills with 10 questions, each with a 10-second response time. It covers topics like counting, geometry, algebra, and prime numbers. The video encourages viewers to engage by sharing their results and subscribing for more content.

How many times does the digit 8 appear in the numbers from 1 to 100?

• 19

• 11

• 20

• 10

Which of the following is the correct formula for the circumference of a circle?

• 2r

• πr²

• πd

• 2πr

What is the result of any number raised to the power of zero?

• It depends on the number

• 2

• 0

• 1

What is the greatest common factor of 6 and 8?

• 3

• 1

• 2

• 4

A number with exactly two distinct positive divisors is known as a:

• Odd number

• Whole number

• Prime number

• Natural number

What is the sine of 90 degrees?

• 0

• 1

• Undefined

• -1

Which of the following is the correct Pythagorean theorem?

• a² + b² = c

• a + b² = c²

• a² + b = c²

• a² + b² = c²

If a^b = c, which of the following is true?

• c = a^b

• a = c^b

• a = b^c

• b = a^c

Solve the equation: 9 - 3 ÷ 1/3 - 1

• 0

• 17

• 1

• 8

What is the result of the expression: -17 + 7 ÷ 7 + 7 × 7 - 20?

• 0

• 50

• 56

• 8