Adding and Subtracting Decimals to the Thousandths Place

The video tutorial explains how to add and subtract decimals by aligning place values and decimals. It demonstrates the process with examples, showing how to handle whole numbers and decimals in both addition and subtraction. The key is to treat the decimals as if they aren't there initially, then bring the decimal point down in the final answer.

What is the first step in adding or subtracting decimals?

• Align the numbers randomly.

• Convert decimals to fractions.

• Start adding or subtracting from the decimal point.

• Align the place values and decimals.

How do you handle the decimal when performing operations with decimals?

• Only use it in the final step.

• Multiply it by 100.

• Ignore it completely.

• Align it before performing the operation.

What is necessary to add or subtract decimals correctly?

• Lining up the decimal points.

• Knowledge of fractions.

• A calculator.

• Converting to whole numbers.

What do you do with the decimal point in the result when adding decimals?

• Move it one place to the right.

• Move it one place to the left.

• It disappears.

• Bring it straight down.

When adding 56.8 and 7.92, what is the correct placement of the decimal in the sum?

• 64.72

• 647.2

• 6.472

• 64.072

In subtraction, where does the decimal point go in the answer?

• At the end of the number.

• It is omitted.

• Directly below the decimals in the problem.

• Wherever it fits.

What is the first step in subtracting decimals according to the video?

• Align the decimal points.

• Subtract like there are no decimals.

• Convert to a simpler form.

• Round to the nearest whole number.

What is the result of subtracting 41.5 from 52?

• 10.05

• 11.05

• 11.5

• 10.5