5.1.3 Estimation Flashcard

Front

Estimate the product of 23 and 45.

Back

1000

Front

Estimate the difference between 9876 and 7890.

Back

2000

Front

Estimate the difference between 789 and 456.

Back

300

Front

Estimate the difference between 2345 and 1234.

Back

1000

Front

Estimate the sum of 456 and 789.

Back

1300

Front

What is estimation in mathematics?

Back

Estimation is the process of finding an approximate value that is reasonably close to the actual value.

Front

Why is estimation important?

Back

Estimation helps in making quick calculations and decisions without needing exact numbers.

Front

What is rounding?

Back

Rounding is the process of adjusting a number to make it simpler and easier to work with, often to the nearest ten, hundred, etc.

Front

How do you round 23 to the nearest ten?

Back

You round 23 to 20.

Front

How do you round 45 to the nearest ten?

Back

You round 45 to 50.