Decimal review

Front

What is a decimal?

Back

A decimal is a way of representing fractions or parts of a whole using a dot (.) to separate the whole number from the fractional part.

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

Back

Front

How do you find the total time traveled when given multiple time durations?

Back

Add all the time durations together to find the total time.

Front

The Bell family traveled for 10.9 hours, 8.6 hours, and 12.4 hours. What is the total travel time?

Back

Front

What is the cost of two items priced at $3.15 each and one item priced at $0.75?

Back

Total cost = 2 * $3.15 + $0.75 = $7.05.

Front

If I pay with two five dollar bills for an item costing $7.05, how much change do I get?

Back

Change = $10.00 - $7.05 = $2.95.

Front

How do you find the missing value when given a total and some known values?

Back

Subtract the sum of the known values from the total to find the missing value.

Front

If three boards measure a total of 16.4 and two boards measure 2.4 and 5.6, what is the measure of the third board?

Back

Third board = 16.4 - (2.4 + 5.6) = 8.4.

Front

What does it mean to round a number?

Back

Rounding a number means adjusting it to the nearest specified value, often to make it simpler or easier to work with.