Number sense

Front

What is number sense?

Back

Number sense is the ability to understand, interpret, and work with numbers. It includes skills such as estimating, rounding, and recognizing numerical relationships.

Front

How do you round a number to the nearest hundred?

Back

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

Front

What is the value of a digit in a number?

Back

The value of a digit in a number depends on its position. For example, in the number 350,423, the digit 5 is in the ten-thousands place, so its value is 50,000.

Front

What is the place value of the digit 3 in the number 350,423?

Back

The place value of the digit 3 in the number 350,423 is 300,000, as it is in the hundred-thousands place.

Front

What is the expanded form of a number?

Back

The expanded form of a number expresses it as the sum of the values of its digits. For example, the expanded form of 125 is 100 + 20 + 5.

Front

How do you identify the value of a digit in a multi-digit number?

Back

To identify the value of a digit in a multi-digit number, determine its position (place value) and multiply the digit by the value of that position.

Front

What is the difference between a digit and a number?

Back

A digit is a single symbol used to represent numbers (0-9), while a number is a combination of digits that represents a quantity.

Front

What is the significance of the digit in the ones place?

Back

The digit in the ones place represents the number of single units in a number. For example, in 1,362, the digit 2 is in the ones place.

Front

How do you convert a number into its word form?

Back

To convert a number into its word form, write out the number using words. For example, 1,362 is written as 'one thousand three hundred sixty-two'.

Front

What is the value of the digit 2 in the number 1,362?

Back

The value of the digit 2 in the number 1,362 is 60, as it is in the tens place.