Adding and subtracting decimals

Front

What is a decimal?

Back

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

Tags

CCSS.2.MD.B.6

Front

How do you add decimals?

Back

To add decimals, align the numbers by the decimal point and add as you would whole numbers, placing the decimal point in the sum directly below the other decimal points.

Tags

CCSS.5.NBT.B.7

Front

How do you subtract decimals?

Back

To subtract decimals, align the numbers by the decimal point and subtract as you would whole numbers, placing the decimal point in the difference directly below the other decimal points.

Tags

CCSS.5.NBT.B.7

Front

What does the term 'tenths' mean in decimals?

Back

Tenths refer to the first digit to the right of the decimal point, representing one part out of ten.

Tags

CCSS.5.NBT.A.3A

Front

What does the term 'hundredths' mean in decimals?

Back

Hundredths refer to the second digit to the right of the decimal point, representing one part out of one hundred.

Tags

CCSS.5.NBT.A.3A

Front

What is the value of the digit 5 in the decimal 0.257?

Back

The 5 in the decimal 0.257 represents five hundredths.

Tags

CCSS.5.NBT.A.3A

Front

If you have 7.9 and subtract 3.47, what is the result?

Back

The result is 4.43.

Tags

CCSS.6.NS.B.3

Front

If Tom received 8.30 kg of candy and his brother received 1.8 kg, how much candy did they get together?

Back

They got 10.1 kg of candy together.

Tags

CCSS.6.NS.B.3

Front

What is the sum of 4.62 cm and 7.7 cm?

Back

The sum is 12.32 cm.

Tags

CCSS.6.NS.B.3

Front

What is the first step in adding decimals?

Back

The first step is to align the numbers by the decimal point.

Tags

CCSS.6.NS.B.3