Number Sense (3.2A/3.2D)

Front

What is number sense?

Back

Number sense is the ability to understand, relate, and connect numbers in a meaningful way.

Front

What does expanded form mean?

Back

Expanded form is a way of writing numbers that shows the value of each digit. For example, 345 = 300 + 40 + 5.

Front

What is the standard form of a number?

Back

Standard form is the way of writing numbers using digits. For example, 2,000 is the standard form of two thousand.

Front

How do you compare two numbers?

Back

You can compare two numbers using symbols: > (greater than), < (less than), and = (equal to).

Front

What is the value of the digit in the tens place in 456?

Back

The value of the digit in the tens place in 456 is 50.

Front

What is the value of the digit in the hundreds place in 789?

Back

The value of the digit in the hundreds place in 789 is 700.

Front

What is the expanded form of the number 5,432?

Back

5,432 = 5,000 + 400 + 30 + 2.

Front

What is the expanded form of the number 2,105?

Back

2,105 = 2,000 + 100 + 5.

Front

What does it mean to round a number?

Back

Rounding a number means adjusting it to the nearest ten, hundred, etc., to make it easier to work with.

Front

What is the place value of the digit 3 in the number 3,456?

Back

The place value of the digit 3 in 3,456 is 3,000.