Decimal Models

Front

What is a decimal model?

Back

A decimal model visually represents decimal numbers, often using grids or blocks to show parts of a whole.

Front

How do you multiply decimals?

Back

To multiply decimals, multiply the numbers as if they were whole numbers, then count the total number of decimal places in both numbers and place the decimal in the product accordingly.

Front

What does the equation 2.60 ÷ 5 = 0.52 represent?

Back

This equation shows that when you divide 2.60 into 5 equal parts, each part is 0.52.

Front

What is the result of 0.80 x 0.40?

Back

0.80 x 0.40 = 0.32.

Front

How do you find the cost of an item when given the weight and price per pound?

Back

Multiply the weight of the item by the price per pound.

Front

What does the equation 2.25 ÷ 5 represent in a real-world context?

Back

This equation can be used to find the cost of each package of gum if 2.25 is the total cost for 5 packages.

Front

What is the purpose of using a decimal model in multiplication?

Back

A decimal model helps visualize the multiplication of decimal numbers, making it easier to understand the concept of parts of a whole.

Front

What is the relationship between multiplication and division of decimals?

Back

Multiplication of decimals is the inverse operation of division; understanding one helps in solving the other.

Front

How can you represent 2.40 ÷ 3 using a model?

Back

You can use a grid or block model to show how 2.40 is divided into 3 equal parts.

Front

What is the first step in solving a decimal multiplication problem?

Back

Identify the numbers to be multiplied and ignore the decimal points initially.