Find the product using suitable properties. (i) `425xx136=425xx(6+30+100)` (a) commutativity under multiplication. (ii) `2xx49xx50=2xx50xx49` (b) commutativity under addition. (iii) `80+2005+20=80+20+2005` (c) Distributivity of multiplication over addition.

Explanation

To solve the question step by step, we will analyze each part of the question and apply the suitable properties as required.

### Step 1: Analyze the first expression
The first expression is:
\[ 425 \times 136 = 425 \times (6 + 30 + 100) \]

Here, we can see that 136 is broken down into three parts: 6, 30, and 100. This is an application of the **Distributive Property of Multiplication over Addition**.

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