Dec 4th Spiral Review

Front

What is expanded notation?

Back

Expanded notation is a way of writing numbers to show the value of each digit. For example, 60,030 can be written as (6 x 10,000) + (3 x 10) + (0 x 1).

Front

How do you subtract two large numbers?

Back

To subtract two large numbers, align them by place value and subtract starting from the rightmost digit, borrowing from the next column if necessary.

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

List the first five prime numbers.

Back

2, 3, 5, 7, 11.

Front

How do you divide a number equally among friends?

Back

To divide a number equally among friends, divide the total number of items by the number of friends.

Front

What is the result of dividing 324 lemons among 5 friends?

Back

Each friend gets 64 lemons.

Front

What is the formula for expanded notation?

Back

The formula for expanded notation is: (digit x place value) + (digit x place value) + ...

Front

What is the difference between a prime number and a composite number?

Back

A prime number has exactly two distinct positive divisors (1 and itself), while a composite number has more than two positive divisors.

Front

How do you find the total money left after a purchase?

Back

To find the total money left after a purchase, subtract the cost of the item from the total amount of money you had.

Front

What is the expanded notation for 60,030?

Back

(6 x 10,000) + (3 x 10) + (0 x 1).