\( 2600 \times 900 \), and Maria estimates by cark both estimates. a) Work b) Use the column method to find the exact number of litres c) Whose estimate was more accurate? How much closer wos this estimate to the exact answer? a) How many seconds are there in a day? b) Use an estimate and then compensate, to calculate how many seconds there are in a month of 31 days.

Calculate the value by following steps: - step0: Calculate: \(24\times 60\times 60\) - step1: Multiply the terms: \(1440\times 60\) - step2: Multiply the numbers: \(86400\) Calculate or simplify the expression \( 31 * 24 * 60 * 60 \). Calculate the value by following steps: - step0: Calculate: \(31\times 24\times 60\times 60\) - step1: Multiply the terms: \(744\times 60\times 60\) - step2: Multiply the terms: \(44640\times 60\) - step3: Multiply the numbers: \(2678400\) Calculate or simplify the expression \( 2600 * 900 \). Calculate the value by following steps: - step0: Calculate: \(2600\times 900\) - step1: Multiply the numbers: \(2340000\) Let's break down the problem step by step. ### Part 1: Calculate \( 2600 \times 900 \) 1. **Exact Calculation**: \[ 2600 \times 900 = 2340000 \] ### Part 2: Estimate and Column Method a) **Estimation**: - Maria might estimate \( 2600 \) as \( 3000 \) and \( 900 \) as \( 1000 \). - Therefore, the estimated product would be: \[ 3000 \times 1000 = 3000000 \] b) **Column Method**: - To find the exact number of litres using the column method, we can break it down: \[ \begin{array}{c} \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \