Basic Math Concepts and Problems

This video tutorial covers a range of mathematical concepts, including positive and negative numbers, solving equations and inequalities, understanding absolute value, and plotting on the coordinate plane. It also explores common factors and multiples, and applies these concepts to real-world problems. The tutorial is designed to enhance problem-solving skills and mathematical understanding.

If a diver is 25 feet below sea level and swims up 15 feet, what is his new elevation?

• 10 feet below sea level

• 15 feet above sea level

• 10 feet above sea level

• 15 feet below sea level

What is the opposite of -5 on a number line?

• 10

• 5

• 0

• -5

Which of the following numbers is greater than -5?

• -4

• -5.5

• -10

• -6

What is the absolute value of -7?

• 7

• 14

• -7

• 0

If a carton can hold 12 eggs and currently has less than 12, which inequality represents the number of eggs, e, in the carton?

• e > 12

• e < 12

• e = 12

• e ≥ 12

What is the shape formed by connecting the points (-2, 3), (2, 3), (-2, -3), and (2, -3) on a coordinate plane?

• Circle

• Triangle

• Rectangle

• Square

If a box of chocolates contains 20 bars and each bar sells for $1.50, how much money is collected from selling 3 boxes?

• $45

• $90

• $30

• $60

What is the greatest common factor of 42 and 15?

• 3

• 5

• 15

• 7

How many bags can be made if there are 48 chocolate chip cookies, 64 vanilla cookies, and 100 raisin cookies, with each bag having the same number of each type of cookie?

• 6

• 4

• 2

• 8

If a green light blinks every 4 seconds and a yellow light blinks every 5 seconds, when will they blink together?

• 20 seconds

• 10 seconds

• 25 seconds

• 15 seconds