Volume
Decimals
Multiplication As Scaling
Expressions
Order of Operations
100
How is volume measured?
cubic units
100
Xavier was going to make a music CD. If the CD has 80 mb of space and he has used 45.6, how much space is left?
80 - 45.6 = 34.4 mb
100
Use <, >, or = to make the below statement true. 1/2 x 7 ___ 7
1/2 x 7 < 7 b/c 1/2 is less than 1
100
Add 5 and 1, double the sum, and then add four-fifths.
(5 + 1) x 2 + 4/5
100
In the expression below, which operation is first? (6 + 7 x 2) + 2
Multiplication
200
A solid figure has a length of 5 inches, width of 3 inches, and height of 5 inches. What is the volume of the figure?
75 cubic inches
200
Kiyanni went to the store and bought Takis for $1.85 and a Dr. Pepper for $1.25. What is her change if she paid for them with a five dollar bill.
1.85 + 1.25 = 3.10 5.00 - 3.10 = $1.90 is her change
200
Use <, >, or = to make the below statement true. 1/2 x 7/8 ___ 7/8 x 1/3
1/2 x 7/8 > 7/8 x 1/3 b/c 1/2 is larger than 1/3
200
Subtract 6 from 9, then multiply by 3/5.
(9 - 6) x 3/5
200
[(4 + 6) x 6] ÷ 5
12
300
A bookshelf has a base of 5 sq. ft. and a height of 3 ft. What is the volume of the bookshelf?
15 cubic ft.
300
5.) At the average speed, the expression 2 ÷ .03 equals how long it would take a snail to travel 2 miles. Which expressions is equivalent to 2 ÷ .03? a.) 2 ÷ 3 b.) 20 ÷ 3 c.) 200 ÷ 3 d.) 2,000 ÷ 3
c.) 200 ÷ 3
300
Use <, >, or = to make the below statement true. 1/2 x (45 + 42) ___ (45 + 42)
1/2 x (45 + 42) < (45 + 42) b/c 1/2 is less than 1.
300
4.) Missy bought 7 pairs of socks for $2.85 a pair. She had a coupon for $2.25 off her total purchase. Which calculation shows the total amount Missy paid for the socks, not including sales tax. a.) 7 x (2.85 – 2.25) b.) 2.85 x (7 – 2.25) c.) (2.85 x 7) – 2.25 d.) (2.85 x 7) ÷ 2.25
c.) (2.85 x 7) – 2.25
300
Insert parenthesis in the expression 6 + 10 x 2 so that it equals (12 + 1) x 2
6 + (10 x 2)
400
The volume of a pool is 400 cubic feet. The base of the pool is 80 sq. ft. What is the height of the pool?
5 ft.
400
Ms. Hill filled up her 11 gallon gas tank because she wants to drive up the East Coast to St. Augustine which is 311 miles away. If each gallon of gas costs $2.17, how much did she pay to fill up her gas tank?
It cost her $23.87.
400
Karen said that 3/4 x 4 will be less than 4. Alycia said that it will not be because when you multiply the answer has to be larger than the largest factor. Why is Karen correct?
Because 3/4 < 1.
400
Ms. Nails is buying t-shirts for the fifth grade class. The ost of each shirt is $5. If she does not know how many students, S, are going what expression could she use to find the total cost of the shirts.
$5 x S
400
1/2 + (6.5 x 2 - 1/2)
13
500
A pool measures 8 ft wide, 10 ft. long, and 5 ft. deep. If there are 7.48 gallons of water in EACH cubic foot, how many gallons does the pool hold if filled to capacity?
8 x 10 x 5 = 400 cu.ft 400 cu.ft. x 7.48 gallons = 2992 gallons
500
Ms. Maria baked 140 cupcakes for the 1st grade bake sale. She put them in boxes of 10 cupcakes each. If she sold each box of 10 for $4.10, how much did she help raise for the bake sale?
140 ÷ 10 = 14 boxes 14 x 4.10 = 57.40 She helped raise $57.40.
500
Alani said that 3/4 x 5 is less than 5. D'mari said that 3/4 x 5 is more than 3/4. Who is correct?
Both are correct; because 3/4 is less than 1, and 5 is more than 1
500
17.) Theresa bought three containers of tennis balls at $2.98 each. She had a coupon for $1 off. Her mom paid for half of the remaining cost. Write an expression to determine what Theresa paid.
[(2.98 x 3) - 1] ÷ 2 or [(2.98 x 3) - 1] x 1/2
500
(1/4 + 1/2) x 5
3 3/4
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