Exponents and PEMDAS
The bill with the greatest value ever printed in the United States had a value of 10^5 (ten to the fifth power) dollars. Write this out in expanded form.
What is 10 x 10 x 10 x 10 x 10
Evaluate the following expression when n = 2:
2n + 7
What is 11
There are 16 ounces in 1 pound. Write an expression that gives the number of ounces in k pounds of meat.
What is 16k (or 16 x k)
A basketball uniform consists of a jersey top and basketball shorts. The jersey tops costs $16 each, and the basketball shorts cost $12 each. The expression 16u + 18u represents the cost, in dollars, of buying u uniforms. How many terms are in this expression?
What is 2 terms
Micah buys 7 mystery books and 3 fantasy books. His sister buys b number of books. Write an expression to represent the total number of books they bought
What is 10 + b
Solve the following:
2^3(3+2) - 4 = ?
What is 36
The expression 500v gives the number of points Collin earns for completing v voyages in a video game. How many points are earned for completing 8 voyages?
What is 4,000 points.
The width of a swimming pool is 5 feet shorter than the length. Let w represent the width. Write an expression that gives the length of the swimming pool.
What is w + 5.
Sandwiches cost $5 and french fries cost $3. Write an expression to show how much it will cost to buy a sandwich and drink for n people.
What is 5n + 3n or what is 8n
Ian started with d dollars in his wallet and then bought a basketball for $23 and a pair of running shoes for $37. Write an expression to represent how much money he has left after buying everything.
What is d - 23 - 37 or what is d - 60
Write 2 x 2 x 2 x 2 in exponent form (you can use the ^ symbol to represent an exponent)
What is 2^4
The expression (p/20) x 4 gives the time in minutes that a person will have to wait to ride a roller coaster when there are p people in front of him or her. How long will Marly have to wait if there are 60 people in front of her?
What is 12 minutes
The price of a skateboard is $5 less than 3 times the price of a pair of knee pads. Let k represent the price of the knee pads. Write an expression that gives the price of the skateboard.
What is 3k - 5
The expression a + b = b + a is an example of the _____ property of addition
Commutative
Brandon bought 6 packs of football cards, p packs of hockey cards, and 4 packs of baseball cards. Write an expression to represent the total packs of cards he bought.
What is 6 + p + 4
Use PEMDAS to evaluate the following:
(4+2)^2
What is 36
The number of meters that Sydney runs during practice is equal to 400n, where s is the number of laps she runs around the track. How many meters does she run if she does 5 laps?
What is 2,000 meters
Caleb bought jeans for $16 each. Let j represent the amount of jeans Caleb bought. He gave the cashier $80. Write an expression to represent the amount of change Caleb will receive. (assuming he does not spend more than he has)
What is 80 - 16j
The expression (ab)c = a(bc) is an example of the _____ property of multiplication
associative
A restaurant owner bought b large bags of flour for $45 each and b large bags of sugar for $25 each. Write an expression to represent the amount of money spent
What is 45b + 25b or what is 70b
Evaluate the expression. 4^2 + 3 (7 - 2) + 4
What is 35.
The formula P = 2 (l + w) gives the perimeter of a rectangle with length l and width w. What is the perimeter of a rectangular field with a length of 10 yards and a width of 5 yards?
What is What is 30 yards
On Saturday, Austin planted 10 rows of tomato plants with p plants in each row. On Sunday, he planted 6 rows of pepper plants with p plants in each row. Write an expression that gives the total number of plants Austin planted this weekend.
What is 10p + 6p
distributive
Write an expression to represent the following phrase: "what is seven less than six the sum of three and four?"
6(3+4) - 7