Estimate to Solve Problems (A1.1.1.4.1)

Front

What is estimation in mathematics?

Back

Estimation is the process of finding an approximate value that is reasonably close to the actual value, often used when exact calculations are not necessary.

Front

How do you estimate the cost per unit?

Back

To estimate the cost per unit, divide the total cost by the total quantity and round to the nearest whole number.

Front

What is the formula for estimating total work hours?

Back

Total work hours can be estimated by multiplying the number of workers, the number of days, and the hours worked per day.

Front

How do you calculate the average of a set of numbers?

Back

To calculate the average, sum all the numbers and divide by the count of numbers.

Front

What does a percentage discount mean?

Back

A percentage discount reduces the original price by a specified percentage, calculated by multiplying the original price by the discount percentage.

Front

How do you calculate sales tax on a purchase?

Back

Sales tax is calculated by multiplying the purchase price by the sales tax rate.

Front

What is the importance of rounding in estimation?

Back

Rounding simplifies numbers, making calculations easier and quicker, especially when exact values are not needed.

Front

How do you estimate large sums quickly?

Back

To estimate large sums, round each number to the nearest ten or hundred before adding.

Front

What is the significance of using benchmarks in estimation?

Back

Benchmarks provide reference points that help in making quick and reasonable estimates.

Front

How can you estimate the total cost of multiple items?

Back

Estimate the cost of each item, then sum the estimated costs for a total.