VANN MATH DCA #2 Review

Front

What is expanded notation?

Back

Expanded notation is a way of writing numbers that shows the value of each digit. For example, the number 92,060 can be written as (9 x 10,000) + (2 x 1,000) + (6 x 10).

Front

How do you write a number in expanded form?

Back

To write a number in expanded form, break it down into the sum of each digit multiplied by its place value. For example, 23,636,025 can be written as (2 x 10,000,000) + (3 x 1,000,000) + (6 x 100,000) + (3 x 10,000) + (6 x 1,000) + (2 x 10) + (5 x 1).

Front

How many pints are in a quart?

Back

There are 2 pints in 1 quart.

Front

If Adam made 30 quarts of lemonade, how many pints did he make?

Back

Adam made 30 quarts x 2 pints/quart = 60 pints.

Front

What is estimation in math?

Back

Estimation is a method of finding an approximate value that is close to the exact answer, often used for quick calculations.

Front

What is the best estimate of 1,100 + 1,200?

Back

The best estimate is 2,300.

Front

What is a box in math problems?

Back

A box often represents a container that holds a certain number of items, used in word problems to help visualize quantities.

Front

If Virginia made 483 ribbons and each hair bow used 7 ribbons, how many hair bows did she make?

Back

Virginia made 483 ribbons ÷ 7 ribbons/hair bow = 69 hair bows.

Front

How do you find the number of boxes if each box holds 3 hair bows?

Back

To find the number of boxes, divide the total number of hair bows by the number of hair bows per box. For example, 69 hair bows ÷ 3 hair bows/box = 23 boxes.

Front

What is the place value of the digit 6 in the number 92,060?

Back

The place value of the digit 6 in 92,060 is 60, as it is in the tens place.