Representing Decimals with Models

Front

What is a decimal?

Back

A decimal is a way of representing numbers that are not whole, using a point to separate the whole number part from the fractional part.

Front

How do you represent 0.31 using a model?

Back

0.31 can be represented using a flat model divided into 100 equal parts, where 31 parts are shaded.

Front

What does the shaded area in a model represent?

Back

The shaded area in a model represents the value of the decimal based on the total number of parts in the model.

Front

If a flat represents one whole unit, how would you represent 1.02?

Back

1.02 can be represented by shading 1 whole flat and 2 out of 100 parts of another flat.

Front

What is the decimal representation of a model shaded with 32 out of 100 parts?

Back

The decimal representation is 0.32.

Front

How do you convert a shaded model into a decimal?

Back

Count the shaded parts, divide by the total parts, and write it as a decimal.

Front

What does 1.65 represent in a model?

Back

1.65 represents 1 whole flat and 65 out of 100 parts of another flat.

Front

How can you represent 0.97 in a model?

Back

0.97 can be represented by shading 97 out of 100 parts of a flat.

Front

What is the difference between 1.2 and 1.02 in terms of model representation?

Back

1.2 represents 1 whole flat and 20 out of 100 parts, while 1.02 represents 1 whole flat and 2 out of 100 parts.

Front

What does the decimal 0.68 represent in a model?

Back

0.68 represents 68 out of 100 parts shaded in a flat model.