Math End of Year Review

Front

What is the formula to find the percentage of a part compared to a whole?

Back

Percentage = (Part / Whole) × 100

Front

If Jenny has finished 12 out of 20 lessons, what percentage of lessons has she completed?

Back

Percentage completed = (12 / 20) × 100 = 60%.

Front

How do you calculate profit from selling items?

Back

Profit = Selling Price - Cost Price.

Front

If Jason sells balloons for $0.50 each and buys them for $0.10, what is his profit per balloon?

Back

Profit per balloon = $0.50 - $0.10 = $0.40.

Front

What is the formula to calculate distance when speed and time are known?

Back

Distance = Speed × Time.

Front

If an airplane travels at 320 miles per hour, how far does it travel in 15 minutes?

Back

Distance = 320 miles/hour × (15/60) hours = 80 miles.

Front

How do you calculate a percentage of a total amount?

Back

Amount = Total × (Percentage / 100).

Front

If Sarah earns $400 and spends 15% on transportation, how much does she spend?

Back

Transportation cost = $400 × (15 / 100) = $60.

Front

What is the associative property of addition?

Back

The associative property states that the way in which numbers are grouped in addition does not change their sum.

Front

Which expression represents the sum of 48 and 72?

Back

48 + 72 = 24(2 + 3).