NSO 1.1-1.5

Front

What is a mystery number?

Back

A mystery number is a number that is not directly given but can be determined using clues or hints.

Front

What digits are used in the mystery number problem?

Back

The digits used are 2, 4, 6, 8, and 0.

Front

How do you write a number in expanded form?

Back

Expanded form shows the value of each digit in a number. For example, 244,910 is written as 200,000 + 40,000 + 4,000 + 900 + 10.

Front

What does it mean to arrange numbers from greatest to least?

Back

Arranging numbers from greatest to least means ordering them starting with the largest number down to the smallest.

Front

What is the average distance from Earth to the moon in miles?

Back

The average distance is 238,855 miles.

Front

How do you read a number in standard form?

Back

Standard form is the usual way of writing numbers using digits. For example, 238,855 is in standard form.

Front

What is a number line?

Back

A number line is a straight line with numbers placed at equal intervals, used to represent numbers visually.

Front

What is the value of the digit 4 in the number 244,910?

Back

In the number 244,910, the digit 4 represents 40,000.

Front

How do you identify the greatest number from a set of decimals?

Back

To identify the greatest number, compare the whole number parts first, then the decimal parts.

Front

What is the significance of place value in numbers?

Back

Place value determines the value of a digit based on its position in a number.