Estimating Whole Numbers

Front

What is the process of estimating whole numbers?

Back

Estimating whole numbers involves rounding numbers to the nearest ten, hundred, or thousand to simplify calculations and make quick approximations.

Front

How do you estimate the sum of two whole numbers?

Back

To estimate the sum, round each number to the nearest ten or hundred and then add the rounded numbers together.

Front

What is the estimated total if Kayley spent 456 dollars and Jimena spent 789 dollars?

Back

The estimated total is 1300 dollars (rounded: 460 + 790).

Front

How do you estimate the total contributions of multiple people?

Back

Round each person's contribution to the nearest hundred and then add the rounded amounts together.

Front

What is the estimated total contribution of Alisson (1,234 dollars) and Kayley (567 dollars)?

Back

The estimated total contribution is 1,800 dollars (rounded: 1,200 + 600).

Front

How do you estimate the difference between two whole numbers?

Back

To estimate the difference, round each number to the nearest ten or hundred and then subtract the smaller rounded number from the larger rounded number.

Front

What is the estimated difference in comic books between Sandor (654) and Yahir (321)?

Back

The estimated difference is 333 comic books (rounded: 650 - 320).

Front

How do you estimate the total after adding a number to another?

Back

Round the original number and the added number to the nearest ten or hundred, then add the rounded numbers.

Front

What is the estimated total number of comic books Anthony has after receiving 321 more?

Back

The estimated total is 1,100 comic books (rounded: 790 + 320).

Front

How do you estimate the total number of items needed for an event?

Back

Round each estimate to the nearest ten or hundred and then add the rounded numbers together.