Unit 3 Review

Front

What is the unit rate?

Back

The unit rate is a comparison of two different quantities when they are combined together. It is often expressed as a quantity per one unit, such as miles per hour or feet per second.

Front

How do you calculate the unit rate?

Back

To calculate the unit rate, divide the total quantity by the number of units. For example, if a cheetah runs 60 feet in 4 seconds, the unit rate is 60 ÷ 4 = 15 feet per second.

Front

What is the formula to find the time taken for a journey?

Back

Time = Distance ÷ Speed. This formula helps to determine how long it will take to travel a certain distance at a given speed.

Front

How do you convert a percentage to a decimal?

Back

To convert a percentage to a decimal, divide the percentage by 100. For example, 40% becomes 0.40.

Front

What is 40% of a number?

Back

To find 40% of a number, multiply the number by 0.40. For example, 40% of 35 is 35 × 0.40 = 14.

Front

What does 'R' mean in division problems?

Back

'R' stands for 'remainder' in division problems. It indicates what is left over after dividing.

Front

What is the result of 2162 divided by 47?

Back

The result is 46.

Front

How do you solve a division problem with a remainder?

Back

When solving a division problem with a remainder, divide the numbers as usual and express the result as 'quotient R remainder'. For example, 353 ÷ 18 = 19 R11.

Front

What is the total distance of the Oregon Trail?

Back

The Oregon Trail is 2,197 miles long.

Front

How do you find the total days for a journey?

Back

To find the total days for a journey, divide the total distance by the daily travel distance. For example, 2,197 miles ÷ 20 miles/day = 110 days.