Multiplying and Estimating Decimal Products

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.

Front

How do you multiply decimals?

Back

To multiply decimals, multiply the numbers as if they were whole numbers, then count the total number of decimal places in both numbers and place the decimal point in the product accordingly.

Front

What is the product of 1.2 and 0.6?

Back

0.72

Front

What does 'about' mean in estimation?

Back

'About' means to give a rough estimate or an approximation rather than an exact number.

Front

If an item costs $499.99, how do you estimate the cost of 5 items?

Back

Round $499.99 to $500, then multiply: 500 x 5 = $2500.

Front

What is the estimated cost of 30 bags of Hot Cheetos at $2.98 each?

Back

Round $2.98 to $3.00, then multiply: 3 x 30 = $90.

Front

What is the product of 0.5 and 9?

Back

4.5

Front

How many minutes does it take to run a mile if one lap takes 1.5 minutes?

Back

It takes 6 minutes to run a mile (1.5 minutes x 4 laps = 6 minutes).

Front

What is estimation in mathematics?

Back

Estimation is a method of finding an approximate value that is close enough to the right answer, often used for quick calculations.

Front

Why is it important to estimate in real-life situations?

Back

Estimating helps make quick decisions and gives a general idea of costs, time, or quantities without needing exact calculations.