Multiplying and Dividing Rational Numbers

Front

What is a rational number?

Back

A rational number is any number that can be expressed as the quotient or fraction of two integers, where the denominator is not zero.

Front

How do you multiply two decimal numbers?

Back

To multiply two decimal numbers, multiply them 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 0.15 and 0.6?

Back

0.15 x 0.6 = 0.09 (3 decimal places in total).

Front

How do you convert kilometers to miles?

Back

To convert kilometers to miles, multiply the number of kilometers by 0.62.

Front

If 12 kilometers is converted to miles, how many miles is that?

Back

12 kilometers x 0.62 = 7.44 miles.

Front

What is the cost of one box if 14 boxes cost $91.00?

Back

Cost of one box = $91.00 / 14 = $6.50.

Front

How do you find the total distance traveled if a distance is repeated multiple times?

Back

Multiply the distance of one trip by the number of trips.

Front

If Jackie rode around a park that is 8.54 miles long 4 times, how far did she travel?

Back

Total distance = 8.54 miles x 4 = 34.16 miles.

Front

What happens when a whole number is multiplied by a fraction?

Back

The product is less than the whole number.

Front

What is the result of multiplying a whole number by a fraction less than 1?

Back

The result is always less than the whole number.