MATHS
$4^{\text {n }}$ July 20
paper 1 izevisions
1 What is the value of $2^5+2^3$ ?
C 40
(2)
2 Find the value of $-2 \times-1 \times 2 \times 3 \times-3 \times 1=$
3 If $2 a-4 b$ is factorised, the answer is C $2(a-2 b)$
4 The median of $1,0,3,2,15 \ldots$
Answer (1)
The value of 2 5 + 2 3 is 40 .
The value of − 2 × − 1 × 2 × 3 × − 3 × 1 is − 36 .
The factorised form of 2 a − 4 b is 2 ( a − 2 b ) .
The median of 1 , 0 , 3 , 2 , 15 is 2 .
Examples
Understanding exponents, multiplication with negative numbers, factorization, and finding the median are fundamental concepts in mathematics. For example, calculating the total processing power of a computer with multiple cores (exponents), determining profit/loss in business scenarios (multiplication with negative numbers), simplifying algebraic expressions in engineering (factorization), and finding the middle value in a dataset for statistical analysis (median) are all real-world applications of these concepts. These skills are essential for problem-solving in various fields.
