Math 7H Units 1-3 Practice

Front

What is the equation to find how many more items need to be sold if a certain number has already been sold?

Back

If 't' is the total items needed and 's' is the sold items, the equation is: t - s = remaining items.

Front

How do you express a percentage problem as a proportion?

Back

Front

What is the result of the expression -8 - (-6)?

Back

The result is -2.

Front

How do you find what number a percentage is of?

Back

Front

How do you calculate the hourly wage from total pay and hours worked?

Back

Hourly wage = Total pay / Total hours.

Front

What is the formula to calculate the total amount after selling a certain number of items?

Back

Total amount = Price per item x Number of items sold.

Front

What does it mean for a number to be a certain percentage of another number?

Back

It means that the first number is that fraction of the second number.

Front

How do you convert a fraction to a percentage?

Back

Multiply the fraction by 100.

Front

What is the equation to find the total when given a part and its percentage?

Back

Total = Part / (Percentage / 100).

Front

What is the relationship between percentages and proportions?

Back

Percentages can be expressed as proportions, where the percentage is compared to 100.