When multiplying numbers in standard form, multiply the coefficients and ADD the exponents. Step 1: Multiply the coefficients: \(2 \times 4 = 8\). Step 2: Add the exponents: \(10^3 \times 10^5 = 10^{3+5} = 10^8\). Step 3: Combine: \(8 \times 10^8\). Step 4: Check if answer is in proper standard form. Since \(1 \leq 8 < 10\), the answer \(8 \times 10^8\) is already in correct standard form. This follows the law of exponents: \(a^m \times a^n = a^{m+n}\). In ECZ Paper 1, multiplication in standard form is a common question type that tests both your understanding of index laws and standard form conventions. Such calculations appear in physics (like finding areas or volumes) and in chemistry (like Avogadro's number calculations).

Break down complex topics into smaller, manageable chunks for easier recall.

Zambia

• Joseph Soko – 101 pts

• Distance of A Straight Line
• Mid-point of A Line
• Equation of a Straight Line
• Parallel and Perpendicular Lines
• COMMUNICATION SYSTEMS