Topic 2 RETAKE Adding & Subtracting Decimals

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, 3.14 is a decimal.

Front

How do you round a decimal to the nearest tenth?

Back

To round a decimal to the nearest tenth, look at the hundredths place. If it is 5 or more, round up the tenths place by one. If it is less than 5, keep the tenths place the same.

Front

What is the sum of 0.5 and 0.3?

Back

0.5 + 0.3 = 0.8

Front

What is the difference between 2.5 and 1.2?

Back

2.5 - 1.2 = 1.3

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.

Front

What is the estimated total mass of 56.24 grams and 8.98 grams when rounded to the nearest tenth?

Back

The estimated total mass is 65.2 grams.

Front

What is the sum of 5.92 and 3.48?

Back

5.92 + 3.48 = 9.40

Front

If Owen spent $1.29 on a pen and $0.38 on an eraser, how much did he spend in total?

Back

Owen spent a total of $1.67.

Front

What is the place value of the digit 4 in the number 3.74?

Back

In the number 3.74, the digit 4 is in the tenths place.

Front

What is the value of 0.07 + 0.05?

Back

0.07 + 0.05 = 0.12