Number Sense

Front

What is number sense?

Back

Number sense is the ability to understand, interpret, and work with numbers. It involves recognizing the relationships between numbers, understanding their magnitude, and being able to perform basic operations.

Front

What is the importance of place value in number sense?

Back

Place value is crucial in number sense as it determines the value of a digit based on its position in a number. It helps in understanding larger numbers and performing operations like addition and subtraction.

Front

How do you round a number to the nearest whole number?

Back

To round a number to the nearest whole number, look at the digit to the right of the target digit. If it is 5 or greater, round up; if it is less than 5, round down.

Front

What is the difference between even and odd numbers?

Back

Even numbers are integers that can be divided by 2 without a remainder, while odd numbers are integers that cannot be divided by 2 evenly.

Front

How do you find the average of a set of numbers?

Back

To find the average, add all the numbers together and then divide by the total count of the numbers.

Front

What is a prime number?

Back

A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself.

Front

What is a composite number?

Back

A composite number is a natural number greater than 1 that has more than two positive divisors.

Front

How do you identify the greatest common factor (GCF) of two numbers?

Back

The GCF of two numbers is the largest number that divides both of them without leaving a remainder. It can be found using prime factorization or listing factors.

Front

What is the least common multiple (LCM) of two numbers?

Back

The LCM of two numbers is the smallest multiple that is evenly divisible by both numbers.

Front

What is the significance of zero in number sense?

Back

Zero is a unique number that represents the absence of quantity. It plays a critical role in arithmetic operations and serves as a placeholder in place value.