Work out the missing value in this estimation.
$0.426-0.183 \approx 0.4-$
Answer (1)
Calculate the left side of the equation: 0.426 − 0.183 = 0.243 .
Set up the equation with the missing value x : 0.243 ≈ 0.4 − x .
Solve for x : x ≈ 0.4 − 0.243 .
The missing value is: 0.157 .
Explanation
Understanding the Problem We are given the estimation 0.426 − 0.183 ≈ 0.4 − missing value . We need to find the missing value.
Calculating the Left Side First, let's calculate the left side of the estimation: 0.426 − 0.183 = 0.243 .
Setting up the Equation Now, let the missing value be x . Then the right side of the estimation is 0.4 − x . So we have 0.243 ≈ 0.4 − x .
Solving for the Missing Value To solve for x , we can rearrange the equation: x ≈ 0.4 − 0.243 . Therefore, x ≈ 0.157 .
Final Answer So, the missing value is approximately 0.157 .
Examples
Estimations are useful in everyday life for quick calculations. For example, when you are at the grocery store, you can estimate the total cost of your items to make sure you don't exceed your budget. If you want to buy an apple for $0.43 and a banana for $0.18, you can estimate the total cost as 0.4 − x ≈ 0.43 − 0.18 , where x is the estimated difference. Solving for x gives you an approximate value to help you manage your spending.
