Subject: Mathematics
Book: Maths Mastery
PEMDAS (Parentheses, Exponents, Multiplication/Division, Addition/Subtraction) or BODMAS (Brackets, Orders, Division/Multiplication, Addition/Subtraction) clarifies the sequence in which to tackle operations. For example, to evaluate 3 + 2 × (5 – 2)², start inside parentheses: (5 – 2) = 3, then exponents: 3² = 9, next multiplication: 2 × 9 = 18, and finally addition: 3 + 18 = 21. Following this strict hierarchy prevents confusion and ensures consistent results across all math problems. This concept underpins everything from basic arithmetic to advanced algebra, guaranteeing accurate calculations in daily life—like computing tax on multiple items or analyzing complex spreadsheet formulas.
If a = 4 and b = 5, what is the value of (a+b)^2?
View QuestionIf a rectangle has a length of 10 cm and a width of 6 cm, what is its perimeter?
View QuestionIf x = 2 and y = 3, what is the value of (x^2 + y^2)?
View QuestionWhat is the area of an equilateral triangle with side length 10 cm?
View QuestionA rectangle has a length of 10 cm and a width of 5 cm. What is the diagonal of the rectangle?
View QuestionIf x - y = 5 and x + y = 15, what is the value of x?
View QuestionIf log(100) = 2 and log(10) = 1, what is log(1000)?
View QuestionA square is inscribed in a circle with a radius of 5 cm. What is the area of the square?
View QuestionWhat is the area of a sector of a circle with radius 14 cm and central angle 90°?
View QuestionA train 120 meters long is moving at a speed of 54 km/h. How long will it take to pass a pole?
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