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 x = 2 and y = 3, what is the value of (x^2 + y^2)?
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View QuestionThe angles of a quadrilateral are in the ratio 3:4:5:6. What is the largest angle?
View QuestionIf a person can type 45 words per minute, how many words can they type in 2 hours?
View QuestionIf sin(A) = 1/2 and A is acute, what is the value of A?
View QuestionA number is increased by 20% and then decreased by 10%. What is the net change?
View QuestionThe ratio of two numbers is 3:5, and their sum is 64. What are the numbers?
View QuestionIf a rectangle has a length of 10 cm and a width of 6 cm, what is its perimeter?
View QuestionThe base of a triangle is 10 cm and its height is 6 cm. What is its area?
View QuestionIf the ratio of two numbers is 3:5 and their HCF is 4, what are the numbers?
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