3rd Math December Math Test

Front

What is standard form?

Back

Standard form is a way of writing numbers using digits. For example, the number 329 is in standard form.

Front

How do you write a number in expanded form?

Back

To write a number in expanded form, you break it down into the value of each digit. For example, 6,284 in expanded form is 6,000 + 200 + 80 + 4.

Front

What is the result of 842 - 193?

Back

649

Front

What is the result of 452 + 23?

Back

475

Front

How do you round a number to the nearest ten?

Back

To round a number to the nearest ten, look at the digit in the ones place. If it's 5 or more, round up. If it's 4 or less, round down. For example, 352 rounds to 350.

Front

What is the value of the digit 2 in the number 6,284?

Back

In the number 6,284, the digit 2 is in the hundreds place, so its value is 200.

Front

What is the value of the digit 8 in the number 6,284?

Back

In the number 6,284, the digit 8 is in the tens place, so its value is 80.

Front

What is the value of the digit 4 in the number 6,284?

Back

In the number 6,284, the digit 4 is in the ones place, so its value is 4.

Front

What does it mean to round a number?

Back

Rounding a number means adjusting it to the nearest specified value, such as the nearest ten or hundred.

Front

What is the difference between expanded form and standard form?

Back

Expanded form shows the value of each digit, while standard form is the regular way of writing the number using digits.