Add Decimals with Models

Front

What is a decimal?

Back

A decimal is a number that includes a decimal point, which separates the whole number part from the fractional part. For example, 3.5 is a decimal.

Front

How do you add decimals using models?

Back

You can add decimals using models by representing each decimal with base ten blocks or grid paper, aligning the decimal points, and then combining the values.

Front

What is the value of the decimal 0.7?

Back

The value of 0.7 is seven-tenths, which means it is 7 parts out of 10.

Front

How do you align decimals when adding?

Back

When adding decimals, align the decimal points vertically so that the digits in each place value (tenths, hundredths, etc.) are in the same column.

Front

What is the sum of 1.2 and 2.5?

Back

The sum of 1.2 and 2.5 is 3.7.

Front

What is the importance of place value in adding decimals?

Back

Place value is important in adding decimals because it helps to ensure that each digit is added correctly according to its value (tenths, hundredths, etc.).

Front

How do you convert a fraction to a decimal?

Back

To convert a fraction to a decimal, divide the numerator (top number) by the denominator (bottom number). For example, 1/4 = 0.25.

Front

What is the decimal equivalent of 3/10?

Back

The decimal equivalent of 3/10 is 0.3.

Front

If you add 0.4 and 0.6, what do you get?

Back

If you add 0.4 and 0.6, you get 1.0.

Front

What is a model you can use to visualize adding decimals?

Back

A number line is a model you can use to visualize adding decimals by showing the distance between numbers.