Grade 5 Mathematics Flashcard: Adding and Subtracting with Whole Numbers

Front

What is estimation in addition?

Back

Estimation in addition is a method used to find an approximate sum by rounding numbers to the nearest ten, hundred, or thousand before adding them.

Front

Estimate the sum of 3456 and 7890 to the nearest hundred.

Back

11300

Front

What is the sum of 456 and 789?

Back

1245

Front

What is subtraction?

Back

Subtraction is the process of taking one number away from another, resulting in a difference.

Front

Sara had 789 marbles and she gave 345 marbles to her friend. How many marbles does Sara have now?

Back

444

Front

Estimate the difference between 8910 and 4567 to the nearest thousand.

Back

4000

Front

What is the total when adding two numbers?

Back

The total is the result of adding two or more numbers together.

Front

A store had 567 customers in the morning and 234 customers in the afternoon. How many customers visited the store in total?

Back

801

Front

What is the difference in subtraction?

Back

The difference is the result obtained when one number is subtracted from another.

Front

How do you round a number to the nearest hundred?

Back

To round a number to the nearest hundred, look at the tens digit. If it is 5 or more, round up; if it is 4 or less, round down.