7th Grade Math STAAR Review

Front

What is the formula for calculating sales tax?

Back

Sales Tax = Price of Item x Sales Tax Rate

Front

How do you calculate the total cost after tax?

Back

Total Cost = Price of Item + Sales Tax

Front

If Sara paid $10 for breakfast and received $3.56 in change, how much did her breakfast cost?

Back

Breakfast Cost = $10 - $3.56 = $6.44

Front

What is a fraction?

Back

A fraction represents a part of a whole and is expressed as a/b, where 'a' is the numerator and 'b' is the denominator.

Front

How do you find 1/5 of a number?

Back

To find 1/5 of a number, divide the number by 5.

Front

If Wendy had 35 tickets and used 1/5 for a game, how many tickets did she use?

Back

Tickets Used = 35 x (1/5) = 7 tickets.

Front

What is the remaining number of tickets after using 1/5?

Back

Remaining Tickets = 35 - 7 = 28 tickets.

Front

How do you calculate 1/2 of a number?

Back

To find 1/2 of a number, divide the number by 2.

Front

If Wendy used 1/2 of her remaining tickets (28), how many did she use?

Back

Tickets Used = 28 x (1/2) = 14 tickets.

Front

How many tickets did Wendy have after winning 5 more tickets?

Back

Total Tickets = Remaining Tickets - Tickets Used + Tickets Won = 28 - 14 + 5 = 19 tickets.