Multiplication and Division of Decimals with Models

Front

What is multiplication of decimals?

Back

Multiplication of decimals involves multiplying two decimal numbers together, which can be visualized using models such as area models or number lines.

Front

What is division of decimals?

Back

Division of decimals is the process of dividing one decimal number by another, often represented using models like bar models or grouping.

Front

How do you represent 1.8 x 4 using a model?

Back

You can represent 1.8 x 4 using an area model that shows 1.8 divided into 4 equal parts.

Front

What equation represents the total cost of 3 peppers at $0.40 each?

Back

The equation is 3 x 0.40 = Total Cost.

Front

How do you find the total cost of items using multiplication?

Back

Multiply the number of items by the cost per item.

Front

What does the model for 1.2 divided by 3 look like?

Back

The model shows one group of four bars and one group of five bars.

Front

What is an area model in multiplication?

Back

An area model visually represents multiplication by dividing a rectangle into smaller sections that correspond to the factors being multiplied.

Front

What is a bar model in division?

Back

A bar model represents division by showing how a total is divided into equal parts.

Front

How do you convert a decimal to a fraction?

Back

To convert a decimal to a fraction, write the decimal over its place value and simplify.

Front

What is the relationship between multiplication and division?

Back

Multiplication and division are inverse operations; knowing one helps to understand the other.